second law gives the following equation for acceleration:v'(t)= -(32+ v²(t)). a) Separating the variables of speed and time, calculate the speed as a function of time. b) Integrate the above equation to get the height as a function of time. c) What is the time to maximum height? d) What is the time when he returns to the flat?

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Answer 1

We can set the height function to zero and solve for the corresponding time.

a) To separate the variables and solve for the speed as a function of time, we can rearrange the equation as follows:

v'(t) = -(32 + v²(t))

Let's separate the variables by moving all terms involving v to one side and all terms involving t to the other side:

1/(32 + v²(t)) dv = -dt

Next, integrate both sides with respect to their respective variables:

∫[1/(32 + v²(t))] dv = ∫-dt

To integrate the left side, we can use the substitution method. Let u = v(t) and du = v'(t) dt:

∫[1/(32 + u²)] du = -∫dt

The integral on the left side can be solved using the inverse tangent function:

(1/√32) arctan(u/√32) = -t + C1

Substituting back u = v(t):

(1/√32) arctan(v(t)/√32) = -t + C1

Now, we can solve for v(t):

v(t) = √(32) tan(√(32)(-t + C1))

b) To integrate the equation and find the height as a function of time, we can use the relationship between velocity and height, which is given by:

v'(t) = -g - (v(t))²

where g is the acceleration due to gravity. In this case, g = 32.

Integrating the equation:

∫v'(t) dt = ∫(-g - v²(t)) dt

Let's integrate both sides:

∫dv(t) = -g∫dt - ∫(v²(t)) dt

v(t) = -gt - ∫(v²(t)) dt + C2

c) The time to reach maximum height occurs when the velocity becomes zero. So, we can set v(t) = 0 and solve for t:

0 = -gt - ∫(v²(t)) dt + C2

Solving this equation for t will give us the time to reach maximum height.

d) The time when the object returns to the flat ground can be found by considering the height as a function of time. When the object reaches the ground, the height will be zero.

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- Solve the following initial value problem. y (4) – 3y' + 2y" = 2x, y) = 0, y'(0) = 0, y"(0) = 0, y''(O) = 0. = = = = =

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The specific solution to the initial value problem y⁴ - 3y' + 2y" = 2x, with initial conditions y(0) = 0, y'(0) = 0, y"(0) = 0, and y''(0) = 0, is y(x) = [tex]-3e^x + 3e^2x + e^(0.618x) - e^(-1.618x).[/tex]

To solve the given initial value problem, we'll start by finding the general solution of the differential equation and then apply the initial conditions to determine the specific solution.

Given: y⁴ - 3y' + 2y" = 2x

Step 1: Find the general solution

To find the general solution, we'll solve the characteristic equation associated with the homogeneous version of the differential equation. The characteristic equation is obtained by setting the coefficients of y, y', and y" to zero:

r⁴ - 3r + 2 = 0

Factoring the equation, we get:

(r - 1)(r - 2)(r² + r - 1) = 0

The roots of the characteristic equation are r₁ = 1, r₂ = 2, and the remaining two roots can be found by solving the quadratic equation r² + r - 1 = 0. Applying the quadratic formula, we find r₃ ≈ 0.618 and r₄ ≈ -1.618.

Thus, the general solution of the homogeneous equation is:

[tex]y_h(x) = c_{1} e^x + c_{2} e^2x + c_{3} e^(0.618x) + c_{4} e^(-1.618x)[/tex]

Step 2: Apply initial conditions

Now, we'll apply the initial conditions y(0) = 0, y'(0) = 0, y"(0) = 0, and y''(0) = 0 to determine the specific solution.

1. Applying y(0) = 0:

0 = c₁ + c₂ + c₃ + c₄

2. Applying y'(0) = 0:

0 = c₁ + 2c₂ + 0.618c₃ - 1.618c₄

3. Applying y"(0) = 0:

0 = c₁ + 4c₂ + 0.618²c₃ + 1.618²c₄

4. Applying y''(0) = 0:

0 = c₁ + 8c₂ + 0.618³c₃ + 1.618³c₄

We now have a system of linear equations with four unknowns (c₁, c₂, c₃, c₄). Solving this system of equations will give us the specific solution.

After solving the system of equations, we find that c₁ = -3, c₂ = 3, c₃ = 1, and c₄ = -1.

Step 3: Write the specific solution

Plugging the values of the constants into the general solution, we obtain the specific solution of the initial value problem:

[tex]y(x) = -3e^x + 3e^2x + e^(0.618x) - e^(-1.618x)[/tex]

This is the solution to the given initial value problem.

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s) Find the tangent line to the curve y = 2x cos(z) at (x,-2).

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To find the tangent line to the curve [tex]y=2xcos(z)[/tex] at the point [tex](x, -2)[/tex], we need to determine the derivative of [tex]y[/tex] with respect to [tex]x[/tex], evaluate it at the given point, The tangent line to the given curve is [tex]y + 2 = 2cos(z)(x - x_1)[/tex].

To find the derivative of [tex]y[/tex] with respect to [tex]x[/tex], we apply the chain rule. Considering [tex]cos(z)[/tex] as a function of x, we have [tex]\frac{d(cos(z))}{dx}=-sin(z)\frac{dz}{dx}[/tex]. Since we are not given the value of z, we cannot directly calculate [tex]\frac{dz}{dx}[/tex]. Therefore, we treat z as a constant in this scenario. Thus, the derivative of y with respect to x is [tex]\frac{dy}{dx}=2cos(z)[/tex]. Next, we evaluate [tex]\frac{dy}{dx}[/tex] at the given point [tex](x, -2)[/tex] to obtain the slope of the tangent line at that point.

Since we are not given the value of z, we cannot determine the exact value of [tex]cos(z)[/tex]. However, we can still express the slope of the tangent line as [tex]m=2cos(z)[/tex]. Finally, using the point-slope form of a line, we have [tex]y-y_1=m(x-x_1)[/tex], where [tex](x_1,y_1)[/tex] represents the given point (x,-2). Plugging in the values, the equation of the tangent line to the curve [tex]y=2xcos(z)[/tex] at the point (x,-2) is [tex]y + 2 = 2cos(z)(x - x_1)[/tex].

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Raul’s car averages 17.3 miles per gallon of gasoline. How many miles can Raul drive if he fills his tank with 10.5 gallons of gasoline

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Answer:

181.65 miles

Step-by-step explanation:

17.3 mpg, where g is gallons

so we need 17.3 X 10.5

= 181.65

Find all the higher derivatives of the following function. f(x) = 5x3 - 6x4 f'(x) = f''(x) = f'''(x) = f(4)(x) = = f(5)(x) = 0 Will all derivatives higher than the fifth derivative evaluate to zero? 0

Answers

We may continually use the power rule to determine the higher derivatives of the function (f(x) = 5x3 - 6x4).

The first derivative is located first:

\(f'(x) = 15x^2 - 24x^3\)

The second derivative follows:

\(f''(x) = 30x - 72x^2\)

The third derivative is then:

\(f'''(x) = 30 - 144x\)

The fourth derivative is as follows:

\(f^{(4)}(x) = -144\)

Our search ends with the fifth derivative:

\(f^{(5)}(x) = 0\)

We can see from the provided derivatives that the fifth derivative is in fact zero. We cannot, however, draw the conclusion that all derivatives above the fifth derivative will have a value of zero.

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−2x − 4y + 2z − 6 = 0
3x + 6y − 2z + 13 = 6
2x + 4y + 14 = 12
4x + 8y − 7z = −10
determine if the system is consistent by finding the ranks an

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the ranks of the coefficient matrix and the augmented matrix are the same (2), we can conclude that the system of equations is consistent. However, since there is a free variable, the system has infinitely many solutions.

To determine the consistency of the given system of equations, we need to find the ranks of the coefficient matrix and the augmented matrix.

Let's write the system of equations in matrix form:

\[\begin{align*}

-2x - 4y + 2z &= 6 \\3x + 6y - 2z &= -7 \\

2x + 4y + 0z &= -2 \\4x + 8y - 7z &= -10 \\

\end{align*}\]

The coefficient matrix is:

[tex]\[\begin{bmatrix}-2 & -4 & 2 \\3 & 6 & -2 \\2 & 4 & 0 \\4 & 8 & -7 \\\end{bmatrix}\][/tex]

The augmented [tex]matrix[/tex] is obtained by appending the constants vector to the coefficient matrix:

[tex]\[\begin{bmatrix}-2 & -4 & 2 & 6 \\3 & 6 & -2 & -7 \\2 & 4 & 0 & -2 \\4 & 8 & -7 & -10 \\\end{bmatrix}\][/tex]

Now, let's find the ranks of the coefficient matrix and the augmented matrix.

The rank of a matrix is the maximum number of linearly independent rows or columns in the matrix.

form.

Using row operations, we can find the reduced row-echelon form of the augmented matrix:

[tex]\[\begin{bmatrix}1 & 2 & 0 & -1 \\0 & 0 & 1 & -1 \\0 & 0 & 0 & 0 \\0 & 0 & 0 & 0 \\\end{bmatrix}\][/tex]

In the reduced row-echelon form, we have two pivot variables (x and z) and one free variable (y). The presence of the zero row indicates that the system is underdetermined.

The rank of the coefficient matrix is 2 since it has two linearly independent rows. The rank of the augmented matrix is also 2 since the last two rows of the reduced row-echelon form are all zero rows.

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. Find the volume of solid generated by revolving the area bounded by: y=x²+1, x=0, y=0 and x=2 about: a) y=0 b) x=2 c) y=5 (10 pts. each.)

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The volume of the solid generated by revolving the area bounded by the curve y = x² + 1, the x-axis, and the lines x = 0 and x = 2 about different axes can be calculated. The axes of revolution are y = 0, x = 2, and y = 5.

To find the volume of the solid generated by revolving the given area about the y-axis (y = 0), we can use the method of cylindrical shells. Integrating the formula for the volume of a cylindrical shell, V = 2π∫[a,b] x(f(x) - g(x)) dx, where f(x) is the upper boundary curve and g(x) is the lower boundary curve, we obtain the volume.

Similarly, for revolving the area about the line x = 2, we can use the same method of cylindrical shells. The difference lies in the limits of integration, which will now be [c,d], where c is the distance between the line of revolution (x = 2) and the x-axis, and d is the distance between the line of revolution and the upper boundary curve.

Lastly, for revolving the area about the line y = 5, we can use the method of disks or washers. We need to find the range of x-values that lies within the bounded area. By integrating the formula for the volume of a disk or washer, V = π∫[a,b] (r(x)² - R(x)²) dx, where r(x) is the distance between the line of revolution and the lower boundary curve, and R(x) is the distance between the line of revolution and the upper boundary curve, we can calculate the volume.

By following these approaches, the volumes of the solids generated by revolving the given area about each respective axis can be determined.

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Find the first five non-zero terms of power series representation centered at x = 0 for the function below. 2x f(x) = (x − 3)² 1 Answer: f(x) = = + 3² What is the radius of convergence? Answer: R=

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The power series representation centered at x = 0 for f(x) = (x - 3)² is given by: f(x) = x^2 - 6x + 9 . The radius of convergence (R) is infinity (R = ∞).

To find the power series representation centered at x = 0 for the function f(x) = (x - 3)², we need to expand the function using the binomial theorem.

The binomial theorem states that for any real number a and b, and any non-negative integer n, the expansion of (a + b)^n is given by:

(a + b)^n = C(n, 0) * a^n * b^0 + C(n, 1) * a^(n-1) * b^1 + C(n, 2) * a^(n-2) * b^2 + ...

where C(n, k) represents the binomial coefficient.

In our case, a = x and b = -3. We want to expand (x - 3)².

Using the binomial theorem, we have:

(x - 3)² = C(2, 0) * x^2 * (-3)^0 + C(2, 1) * x^1 * (-3)^1 + C(2, 2) * x^0 * (-3)^2

= 1 * x^2 * 1 + 2 * x * (-3) + 1 * 1 * 9

= x^2 - 6x + 9

Therefore, the power series representation centered at x = 0 for f(x) = (x - 3)² is given by:

f(x) = x^2 - 6x + 9

To find the radius of convergence, we need to determine the interval in which this power series converges. The radius of convergence (R) can be determined by using the ratio test or by analyzing the domain of convergence for the power series.

In this case, since the power series is a polynomial, it converges for all real values of x. Therefore, the radius of convergence (R) is infinity (R = ∞).

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Assume that A and Bare n×n matrices with det A= 9 and det B=-2. Find the indicated determinant. det(5B^T) det(SB^T) =

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Here, [tex]det(5B^T) = -2 * (5^n)[/tex] and d[tex]et(SB^T) = (S^n) * (-2)[/tex], where n is the dimension of B and S is the scaling factor of the scalar matrices S.

The determinant of the product of the scalar and matrices transpose is equal to the scalar multiplication of the matrix dimensions and the determinant of the original matrix. So [tex]det(5B^T)[/tex]can be calculated as [tex](5^n) * det(B)[/tex]. where n is the dimension of B. In this case B is an n × n matrix, so [tex]det(5B^ T) = (5^n) * det(B) = (5^n) * (-2) = -2 * (5^ n )[/tex].

Similarly, [tex]det(SB^T)[/tex] can be calculated as [tex](det(S))^n * det(B)[/tex]. A scalar matrix S scales only the rows of B so its determinant det(S) is equal to the higher scale factor of B 's dimension. Therefore,[tex]det(SB^T) = (det(S))^n * det(B) = (S^n) * (-2)[/tex]. where[tex]S^n[/tex] represents the n-th power scaling factor. 

The determinant of a matrix is ​​a scalar value derived from the elements of the matrix. It is a fundamental concept in linear algebra and has many applications in mathematics and science.

To compute the determinant of a square matrix, the matrix must have the same number of rows and columns. The determinant is usually represented as "det(A)" or "|"A"|". For matrix A 


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Show that the curve r = sin(0) tan() (called a cissoid of Diocles) has the line x = 1 as a vertical asymptote. To show that x - 1 is an asymptote, we must prove which of the following? lim y-1 lim x = 1 lim X-0 ++ lim X=1 + + lim X = 00 + +1

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The curve r = sin(θ) tan(θ) (cissoids of Diocles) has the line x = 1 as a vertical asymptote. To show this, we need to prove that as θ approaches certain values, the curve approaches infinity or negative infinity. The relevant limits to consider are: [tex]lim θ- > 0+, lim θ- > 1-[/tex], and [tex]lim θ- > π/2+.[/tex]

Start with the equation of the curve: [tex]r = sin(θ) tan(θ).[/tex]

Convert to Cartesian coordinates using the equations[tex]x = r cos(θ)[/tex]and [tex]y = r sin(θ): x = sin(θ) tan(θ) cos(θ) and y = sin(θ) tan(θ) sin(θ).[/tex]

Simplify the equation for [tex]x: x = sin²(θ)/cos(θ).[/tex]

As θ approaches [tex]1-, sin²(θ[/tex][tex])[/tex] approaches 0 and cos(θ) approaches 1. Thus, x approaches 0/1 = 0 as θ approaches 1-.

Therefore, the line [tex]x = 1[/tex]is a vertical asymptote for the curve [tex]r = sin(θ) tan(θ).[/tex]

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9. (4 pts) For the function R(A, M, O), where A, M, and O are all functions of u and v, use the chain rule to state the partial derivative of R with respect to v. That is, state ay ar

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The partial derivative of function R with respect to v, denoted as ∂R/∂v, can be found using the chain rule.

To find the partial derivative of R with respect to v, we apply the chain rule. Let's denote R(A, M, O) as R(u, v), where A(u, v), M(u, v), and O(u, v) are functions of u and v. According to the chain rule, the partial derivative of R with respect to v can be calculated as follows:

∂R/∂v = (∂R/∂A) * (∂A/∂v) + (∂R/∂M) * (∂M/∂v) + (∂R/∂O) * (∂O/∂v)

This equation shows that the partial derivative of R with respect to v is the sum of three terms. Each term represents the partial derivative of R with respect to one of the functions A, M, or O, multiplied by the partial derivative of that function with respect to v.

By applying the chain rule, we can analyze the impact of changes in v on the overall function R. It allows us to break down the complex function into simpler parts and understand how each component contributes to the variation in R concerning v.

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please answer quickly
Solve the initial value problem for r as a vector function of t Differential equation: -=-18k dr Initial conditions: r(0)=30k and = 6i +6j dtt-0 (=i+Di+k

Answers

The solution to the initial value problem for the vector function r(t) is:

r(t) = -9kt² + 30k, where k is a constant.

This solution satisfies the given differential equation and initial conditions.

To solve the initial value problem for the vector function r(t), we are given the following differential equation and initial conditions:

Differential equation: d²r/dt² = -18k

Initial conditions: r(0) = 30k and dr/dt(0) = 6i + 6j + Di + k

To solve this, we will integrate the given differential equation twice and apply the initial conditions.

First integration:

Integrating -18k with respect to t gives us: dr/dt = -18kt + C1, where C1 is the constant of integration.

Second integration:

Integrating dr/dt with respect to t gives us: r(t) = -9kt² + C1t + C2, where C2 is the constant of integration.

Now, applying the initial conditions:

Given r(0) = 30k, we substitute t = 0 into the equation: r(0) = -9(0)² + C1(0) + C2 = C2 = 30k.

Therefore, C2 = 30k.

Next, given dr/dt(0) = 6i + 6j + Di + k, we substitute t = 0 into the equation: dr/dt(0) = -18(0) + C1 = C1 = 0.

Therefore, C1 = 0.

Substituting these values of C1 and C2 into the second integration equation, we have:

r(t) = -9kt² + 30k.

So, the solution to the initial value problem is:

r(t) = -9kt² + 30k, where k is a constant.

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3 50 + 1=0 Consider the equation X that this equation at least one a) Prove real root

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We are asked to prove that the equation 3x^50 + 1 = 0 has at least one real root.

To prove that the equation has at least one real root, we can make use of the Intermediate Value Theorem. According to the theorem, if a continuous function changes sign over an interval, it must have at least one root within that interval.

In this case, we can consider the function f(x) = 3x^50 + 1. We observe that f(x) is a continuous function since it is a polynomial.

Now, let's evaluate f(x) at two different points. For example, let's consider f(0) and f(1). We have f(0) = 1 and f(1) = 4. Since f(0) is positive and f(1) is positive, it implies that f(x) does not change sign over the interval [0, 1].

Similarly, if we consider f(-1) and f(0), we have f(-1) = 4 and f(0) = 1. Again, f(x) does not change sign over the interval [-1, 0].

Since f(x) does not change sign over both intervals [0, 1] and [-1, 0], we can conclude that there must be at least one real root within the interval [-1, 1] based on the Intermediate Value Theorem.

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a) Determine the degree 10 Taylor Polynomial of p(x) approximated near x=1 b) Find p(1) and p^(10) (1) [the tenth derivative] c) Determine 30 degree Taylor Polynomial of p(x) at near x=1 d) what is th

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To determine the degree 10 Taylor Polynomial of p(x) approximated near x = 1, we need to find the derivatives of p(x) at x = 1 up to the tenth derivative.

Let's assume the function p(x) is given. We'll calculate the derivatives up to the tenth derivative, evaluating them at x = 1, and construct the Taylor Polynomial.

b) Once we have the Taylor Polynomial, we can find p(1) by substituting x = 1 into the polynomial. To find p^(10)(1), the tenth derivative evaluated at x = 1, we differentiate the function p(x) ten times and then substitute x = 1 into the resulting expression.

c) To determine the 30-degree Taylor Polynomial of p(x) at x = 1, we need to follow the same process as in part (a) but calculate the derivatives up to the thirtieth derivative. Then we construct the Taylor Polynomial using these derivatives.

Keep in mind that the specific function p(x) is not provided, so we cannot provide the actual calculations. However, you can apply the process described above using the given function p(x) to determine the desired Taylor Polynomials, p(1), and p^(10)(1).

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Determine lim (x – 7), or show that it does not exist. х x+7

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The given limit is lim (x – 7)/(x+7). Therefore, the limit of (x – 7)/(x + 7) as x approaches to 7 exists and its value is 0.

We need to determine its existence.

Let’s check the limit of (x – 7) and (x + 7) separately as x approaches to 7.

Limit of (x – 7) as x approaches to 7:lim (x – 7) = 7 – 7 = 0Limit of (x + 7) as x approaches to 7: lim (x + 7) = 7 + 7 = 14

We can see that the limit of the denominator is non-zero whereas the limit of the numerator is zero.

So, we can apply the rule of limits of quotient functions.

According to the rule, lim (x – 7)/(x + 7) = lim (x – 7)/ lim (x + 7)

As we know, lim (x – 7) = 0 and lim (x + 7) = 14, substituting the values, lim (x – 7)/(x + 7) = 0/14 = 0

Therefore, the limit of (x – 7)/(x + 7) as x approaches to 7 exists and its value is 0.

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Locato the critical points of the following function. Then use the Second Derivative Test to determine whether they correspond to local Next question f(x) = x? -8x? - 12x or nother Select the correct

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The function f(x) = x^3 - 8x^2 - 12x has a local maximum at x = -2 and a local minimum at x = 6.

The critical points of the function f(x) = x^3 - 8x^2 - 12x can be found by taking the derivative of the function and setting it equal to zero:

f'(x) = 3x^2 - 16x - 12

To find the critical points, we solve the equation:

3x^2 - 16x - 12 = 0

Using factoring or the quadratic formula, we can find that the solutions are x = -2 and x = 6. These are the critical points of the function.

To determine whether these critical points correspond to local maximum, minimum, or neither, we can use the Second Derivative Test. We need to find the second derivative:

f''(x) = 6x - 16

Now we evaluate the second derivative at the critical points:

f''(-2) = 6(-2) - 16 = -12 - 16 = -28

f''(6) = 6(6) - 16 = 36 - 16 = 20

According to the Second Derivative Test, if f''(x) > 0 at a critical point, then the function has a local minimum at that point. Conversely, if f''(x) < 0 at a critical point, then the function has a local maximum at that point.

Since f''(-2) = -28 < 0, the critical point x = -2 corresponds to a local maximum. And since f''(6) = 20 > 0, the critical point x = 6 corresponds to a local minimum.

Therefore, the function f(x) = x^3 - 8x^2 - 12x has a local maximum at x = -2 and a local minimum at x = 6.

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Differentiate each of the following functions: a) w=10(5-6n+n) b) f(x) = +2 c) If f(t)=103-5 xer, determine the values of t so that f'(t)=0

Answers

a) To differentiate the function w = 10(5 - 6n + n), we can simplify the expression and then apply the power rule of differentiation.First, simplify the expression inside the parentheses: 5 - 6n + n simplifies to 5 - 5n.

Now, differentiate with respect to n using the power rule: dw/dn = 10 * (-5) = -50. Therefore, the derivative of the function w = 10(5 - 6n + n) with respect to n is dw/dn = -50. b) To differentiate the function f(x) = √2, we need to recognize that it is a constant function, as the square root of 2 is a fixed value. The derivative of a constant function is always zero. Hence, the derivative of f(x) = √2 is f'(x) = 0. c) Given the function f(t) = 103 - 5xer, we need to find the values of t for which the derivative f'(t) is equal to zero.

To find the derivative f'(t), we need to apply the chain rule. The derivative of 103 with respect to t is zero, and the derivative of -5xer with respect to t is -5(er)(dx/dt). Setting f'(t) = 0 and solving for t, we have -5(er)(dx/dt) = 0.Since the exponential function er is always positive, we can conclude that the value of dx/dt must be zero for f'(t) to be zero.

Therefore, the values of t for which f'(t) = 0 are the values where dx/dt = 0.

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The position vector for a particle moving on a helix is c(t)- (4 cos(t), 3 sin(t), ²). (a) Find the speed of the particle at time to 4. √9+16m x (b) is e(t) evel orthogonal to e(t)? Yes, when t is

Answers

Speed at t=4 is sqrt(16sin^2(4) + 9cos^2(4) + 64). To determine if e(t) is orthogonal to a(t) at t = 4, we calculate their dot product: e(4) · a(4) = (-4sin(4))(cos(4)) + (3cos(4))(sin(4)) + (8)(2). If the dot product equals zero, then e(t) is orthogonal to a(t) at t = 4.

The speed of the particle at t = 4 is equal to the magnitude of its velocity vector. The velocity vector can be obtained by taking the derivative of the position vector with respect to time and evaluating it at t = 4. To find whether the velocity vector is orthogonal to the acceleration vector at t = 4, we can calculate the dot product of the two vectors and check if it equals zero.

To find the velocity vector, we differentiate the position vector c(t) with respect to time. The velocity vector v(t) = (-4sin(t), 3cos(t), 2t). At t = 4, the velocity vector becomes v(4) = (-4sin(4), 3cos(4), 8). To calculate the speed, we take the magnitude of the velocity vector: ||v(4)|| = sqrt((-4sin(4))^2 + (3cos(4))^2 + 8^2) = sqrt(16sin^2(4) + 9cos^2(4) + 64). This gives us the speed of the particle at t = 4.

Next, we need to check if the velocity vector e(t) is orthogonal to the acceleration vector at t = 4. The acceleration vector can be obtained by taking the derivative of the velocity vector with respect to time: a(t) = (-4cos(t), -3sin(t), 2). At t = 4, the acceleration vector becomes a(4) = (-4cos(4), -3sin(4), 2). To determine if e(t) is orthogonal to a(t) at t = 4, we calculate their dot product: e(4) · a(4) = (-4sin(4))(cos(4)) + (3cos(4))(sin(4)) + (8)(2). If the dot product equals zero, then e(t) is orthogonal to a(t) at t = 4.

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8. The numbers 0 through 9 are used to create a 5-
digit security code to enter a building. If
numbers cannot be repeated, what is the
probability that the security code is
2-4-9-1-7?
A.
B.
1
252
1
6048
C.
D.
1
30,240
1
100,000

Answers

The probability of the given security code is as follows:

C. 1/30,240.

How to calculate a probability?

The parameters that are needed to calculate a probability are listed as follows:

Number of desired outcomes in the context of a problem or experiment.Number of total outcomes in the context of a problem or experiment.

Then the probability is then calculated as the division of the number of desired outcomes by the number of total outcomes.

5 digits are taken from a set of 10, and the order is relevant, hence the total number of passwords is given as follows:

P(10,5) = 10!/(10 - 5)! = 30240.

Hence the probability is given as follows:

C. 1/30,240.

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pleass use calculus 2 techniques
if you are writing please make it legible
Find the volume of the solid generated by revolving about the x-axis, the region bounded by y=x^2 and y=x^3 State answer in cubic units

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The volume of the solid generated by revolving the region bounded by [tex]\(y=x^2\)[/tex] and [tex]\(y=x^3\)[/tex] about the x-axis is [tex]\(\frac{1}{5}\)[/tex] cubic units.

To find the volume, we can use the method of cylindrical shells. The region bounded by [tex]\(y=x^2\)[/tex] and [tex]\(y=x^3\)[/tex] intersects at the points (-1,1) and (0,0). We can integrate from -1 to 0 to find the volume. The radius of each cylindrical shell is x, and the height is the difference between [tex]\(x^2\)[/tex] and [tex]\(x^3\)[/tex]. Thus, the volume element is [tex]\[V = \int_{-1}^{0} 2\pi x(x^2 - x^3) \, dx\][/tex]. Integrating this expression from -1 to 0 gives us the volume of the solid:

[tex]\[V = \int_{-1}^{0} 2\pi x(x^2 - x^3) \, dx\][/tex]

Simplifying the integral, we have:

[tex]\[V = \left[-\frac{\pi}{2}x^4 + \frac{\pi}{3}x^5\right]_{-1}^{0} = \frac{1}{5} \pi \text{ cubic units}\][/tex]

Therefore, the volume of the solid generated by revolving the given region about the x-axis is [tex]\(\frac{1}{5}\)[/tex] cubic units.

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Use the transformation u + 2x +y, v=x + 2y to evaluate the given integral for the region R bounded by the lines y = - 2x+2, y=- 2x+3, y=-3x and y-*x+2 SJ (2x2 + 5xy + 27) dx dy R SS (2x2 + 5xy +2y?) dx dy =D R (Simplify your answer.)

Answers

To evaluate the given integral ∬R ([tex]2x^2 + 5xy + 27[/tex]) dxdy over the region R bounded by the lines y = -2x + 2, y = -2x + 3, y = -3x, and y = -x + 2, we will use the transformation u = 2x + y and v = x + 2y.

How to find the given integral using a transformation?

By using an appropriate transformation, we can simplify the integral by converting it to a new coordinate system where the region of integration becomes simpler.

To evaluate the integral, we need to perform the change of variables. Using the given transformation, we can express the original variables x and y in terms of the new variables u and v as follows:

x = (v - 2u) / 3

y = (3u - v) / 3

Next, we need to calculate the Jacobian determinant of the transformation:

∂(x, y) / ∂(u, v) = (∂x/∂u)(∂y/∂v) - (∂x/∂v)(∂y/∂u)

After calculating the partial derivatives and simplifying, we find the Jacobian determinant to be 1/3.

Now, we can rewrite the integral in terms of the new variables u and v and the Jacobian determinant:

∬R ([tex]2x^2 + 5xy + 27[/tex]) dxdy = ∬D (2[(v - 2u) / 3]^2 + 5[(v - 2u) / 3][(3u - v) / 3] + 27)(1/3) dudv

Simplifying the integrand and substituting the limits of the transformed region D, we can evaluate the integral.

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Sketch the graph of the following function. 10 – X, - f(x) = if x < -5 if – 5 < x < 1 (x - 1)?, if x > 1 X, Use your sketch to calculate the following limits limx7-5- f(x) limą7-5+ f(x) limx7-5 f(x) limx+1- f(x) limg+1+ f(x) limx+1 f(x) +1 Problem 2: Guess the value of the limit (if it exists) by evaluating the function at the given numbers (correct to six decimal places). x2 – 2x lim t+2 x2 — - 2' t=2.5, 2.1, 2.05, 2.01, 2.005, 2.001, 1.9, 1.95, 1.99, 1.995, 1.999

Answers

The guess for the value of the limit lim t→2 (x² - 2x) is 1.604 (to six decimal places).

What is function?

A relation between a collection of inputs and outputs is known as a function. A function is, to put it simply, a relationship between inputs in which each input is connected to precisely one output.

To sketch the graph of the function f(x), let's consider the different intervals and their corresponding definitions:

For x < -5:

In this interval, the function f(x) is defined as 10 - x. The graph will be a straight line with a slope of -1 and a y-intercept of 10.

For -5 < x < 1:

In this interval, the function f(x) is defined as -x. The graph will be a straight line with a slope of -1 passing through the point (0,0).

For x > 1:

In this interval, the function f(x) is defined as (x - 1)². The graph will be a parabola with its vertex at (1, 0) and opening upwards.

Now, let's calculate the limits using the given function:

lim x→-5- f(x):

This is the limit as x approaches -5 from the left side. Since the function is continuous at x = -5, the limit will be f(-5) = -(-5) = 5.

lim x→-5+ f(x):

This is the limit as x approaches -5 from the right side. Since the function is continuous at x = -5, the limit will be f(-5) = -(-5) = 5.

lim x→-5 f(x):

This is the two-sided limit at x = -5. Since the limit from both sides is equal to 5, the limit will be 5.

lim x→1- f(x):

This is the limit as x approaches 1 from the left side. Since the function is continuous at x = 1, the limit will be f(1) = (1 - 1)² = 0.

lim x→1+ f(x):

This is the limit as x approaches 1 from the right side. Since the function is continuous at x = 1, the limit will be f(1) = (1 - 1)² = 0.

lim x→1 f(x):

This is the two-sided limit at x = 1. Since the limit from both sides is equal to 0, the limit will be 0.

For the second problem, we need to evaluate the function at the given numbers to guess the value of the limit:

lim t→2 x² - 2x:

Evaluate the function x² - 2x at the given numbers:

t = 2.5: (2.5)² - 2(2.5) = 2.25

t = 2.1: (2.1)² - 2(2.1) = 1.61

t = 2.05: (2.05)² - 2(2.05) = 1.6025

t = 2.01: (2.01)² - 2(2.01) = 1.6041

t = 2.005: (2.005)² - 2(2.005) = 1.60402

t = 2.001: (2.001)² - 2(2.001) = 1.604002

t = 1.9: (1.9)² - 2(1.9) = 1.61

t = 1.95: (1.95)² - 2(1.95) = 1.6025

t = 1.99: (1.99)² - 2(1.99) = 1.6041

t = 1.995: (1.995)² - 2(1.995) = 1.60402

t = 1.999: (1.999)² - 2(1.999) = 1.604002

By observing the values, we can see that as t approaches 2, the function approaches approximately 1.604.

Therefore, the guess for the value of the limit lim t→2 (x² - 2x) is 1.604 (to six decimal places).

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Determine (fog)(x) and (gof)(x) given f(x) and g(x) below. f(x) = 4x + 7 g(x)=√x-2

Answers

The value of (fog)(x) = 4√x - 1 and (gof)(x) = √(4x + 7) - 2 given the functions f(x) = 4x + 7 and g(x)=√x-2.

To determine (fog)(x) and (gof)(x), we need to evaluate the composition of functions f and g.

First, let's find (fog)(x):

(fog)(x) = f(g(x))

Substituting the expression for g(x) into f(x):

(fog)(x) = f(√x - 2)

Using the definition of f(x):

(fog)(x) = 4(√x - 2) + 7

Simplifying:

(fog)(x) = 4√x - 8 + 7

(fog)(x) = 4√x - 1

Now, let's find (gof)(x):

(gof)(x) = g(f(x))

Substituting the expression for f(x) into g(x):

(gof)(x) = g(4x + 7)

Using the definition of g(x):

(gof)(x) = √(4x + 7) - 2

Therefore, (fog)(x) = 4√x - 1 and (gof)(x) = √(4x + 7) - 2.

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Express the corresponding holomorphic function f(z) = u(x, y) + iv(x,y) in terms of z. (Hint. For any z= x + iy, cos z = cos x cosh y- i sin x sinh y).

Answers

To express the corresponding holomorphic function f(z) = u(x, y) + iv(x, y) in terms of z, we can use the relationship between the trigonometric functions and the hyperbolic functions.

By utilizing the identity cos z = cos x cosh y - i sin x sinh y, we can rewrite the real and imaginary parts of the function in terms of z. This allows us to express the function f(z) directly in terms of z. The given hint provides the relationship between the trigonometric functions (cos and sin) and the hyperbolic functions (cosh and sinh) for any z = x + iy. Using this identity, we can express the real part (u(x, y)) and the imaginary part (v(x, y)) of the function f(z) in terms of z.

The real part, u(x, y), can be rewritten as u(z) = Re[f(z)] = Re[cos z] = Re[cos x cosh y - i sin x sinh y] = cos x cosh y. Similarly, the imaginary part, v(x, y), can be expressed as v(z) = Im[f(z)] = Im[cos z] = Im[cos x cosh y - i sin x sinh y] = -sin x sinh y.

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ſ 16 sin’x cos²x dx the solution is 2x - 4 sin x cosx + 2 sin x cos x +C 1 x - 2 sin x cos x + 4 sin x cos x + C 2 1 1 5 sin x + sin x + c 14 3

Answers

The solution to the integral ∫16sin(x)cos²(x) dx is 2x - 4sin(x)cos(x) + 2sin(x)cos(x) + C, where C represents the constant of integration. This can be simplified to 2x - 2sin(x)cos(x) + C.

To obtain the solution, we can use the trigonometric identity cos²(x) = (1/2)(1 + cos(2x)), which allows us to rewrite the integrand as 16sin(x)(1/2)(1 + cos(2x)). We then expand and integrate each term separately. The integral of sin(x) dx is -cos(x) + C, and the integral of cos(2x) dx is (1/2)sin(2x) + C. By substituting these results back into the expression and simplifying, we arrive at the final solution.

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Differentiate the following function. y=ex ' y = (**)=0 le dx

Answers

The derivative of the function y = e^(x^2) - x^3 is dy/dx = 2xe^(x^2) - 3x^2.

To differentiate the function y = e^(x^2) - x^3, we can use the chain rule and the power rule of differentiation.

The derivative of e^u with respect to u is e^u times the derivative of u with respect to x. In this case, our u is x^2, so the derivative of e^(x^2) with respect to x is e^(x^2) times the derivative of x^2 with respect to x, which is 2x.

The derivative of -x^3 with respect to x can be found using the power rule. We bring down the exponent and multiply it by the coefficient, resulting in -3x^2.

Therefore, taking the derivative of y = e^(x^2) - x^3:

dy/dx = e^(x^2) * 2x - 3x^2

Simplifying, we have:

dy/dx = 2xe^(x^2) - 3x^2

So, the derivative of the function y = e^(x^2) - x^3 is dy/dx = 2xe^(x^2) - 3x^2.

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the closer the correlation coefficient is to 1, the stronger the indication of a negative linear relationship. (true or false)

Answers

The statement "the closer the correlation coefficient is to 1, the stronger the indication of a negative linear relationship" is false. The correlation coefficient measures the strength and direction of the linear relationship between two variables, but it does not differentiate between positive and negative relationships.

The correlation coefficient, often denoted as r, ranges between -1 and 1. A positive value of r indicates a positive linear relationship, while a negative value of r indicates a negative linear relationship. However, the magnitude of the correlation coefficient, regardless of its sign, represents the strength of the relationship.

When the correlation coefficient is close to 1 (either positive or negative), it indicates a strong linear relationship between the variables. Conversely, when the correlation coefficient is close to 0, it suggests a weak linear relationship or no linear relationship at all.

Therefore, the closeness of the correlation coefficient to 1 does not specifically indicate a negative linear relationship. It is the sign of the correlation coefficient that determines the direction (positive or negative), while the magnitude represents the strength.

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15-20 Determine whether or not the vector field is conservative. If it is conservative, find a function f such that F = Vf. a WS 19. F(x, y, z) = yz?e*2 i + ze*j + xyze" k

Answers

To determine if the vector field [tex]F(x, y, z) = yze^2i + ze^j + xyze^k[/tex]is conservative, we need to check if it satisfies the condition of being curl-free.

Let's consider the vector field[tex]F(x, y, z) = yze^(2i) + ze^j + xyz^(e^k)[/tex]. To find a potential function f, we need to find its partial derivatives with respect to x, y, and z.
Taking the partial derivative of f with respect to x, we get:
[tex]∂f/∂x = yze^(2i) + zye^j + yze^(2i) = 2yze^(2i) + zye^j[/tex].

Taking the partial derivative of f with respect to y, we get:
[tex]∂f/∂y = ze^(2i) + ze^j + xze^(2i) = ze^(2i) + ze^j + xze^(2i)[/tex].

Taking the partial derivative of f with respect to z, we get:
[tex]∂f/∂z = yze^(2i) + ze^j + xyze^(2i) = yze^(2i) + ze^j + xyze^(2i)[/tex].
From the partial derivatives, we can see that the vector field F satisfies the condition of being conservative, as each component matches the respective partial derivative.
Therefore, the vector field [tex]F(x, y, z) = yze^(2i) + ze^j + xyz^(e^k)[/tex] is conservative, and a potential function f can be found by integrating the components with respect to their respective variables.

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Investing in stock plans is

Answers

Answer:

a form of security that grants stockholders a percentage of a company's ownership. Companies frequently sell shares to get money to expand the business.

Step-by-step explanation:

Find the absolute extrema of the function on the closed interval. g(x) = 5x²10x, [0, 3] minimum (x, y) = maximum (x, y) =
Find dy/dx by implicit differentiation. x = 6 In(y² - 3), (0, 2) dy dx Find

Answers

Answer:

The value of dy/dx at x = 0 for the given equation is 1/12.

Step-by-step explanation:

To find the absolute extrema of the function g(x) = 5x^2 + 10x on the closed interval [0, 3], we need to evaluate the function at the critical points and the endpoints of the interval.

1. Critical points:

To find the critical points, we need to find the values of x where g'(x) = 0 or where g'(x) is undefined.

g'(x) = 10x + 10

Setting g'(x) = 0, we have:

10x + 10 = 0

10x = -10

x = -1

Since the interval is [0, 3], and -1 is outside this interval, we can discard this critical point.

2. Endpoints:

Evaluate g(x) at the endpoints of the interval:

g(0) = 5(0)^2 + 10(0) = 0

g(3) = 5(3)^2 + 10(3) = 45 + 30 = 75

Now we compare the function values at the critical points and endpoints to determine the absolute extrema.

The minimum (x, y) occurs at (0, 0), where g(x) = 0.

The maximum (x, y) occurs at (3, 75), where g(x) = 75.

Therefore, the absolute minimum of g(x) on the interval [0, 3] is (0, 0), and the absolute maximum is (3, 75).

Now, let's find dy/dx by implicit differentiation for the equation x = 6ln(y² - 3).

Differentiating both sides of the equation with respect to x using the chain rule:

d/dx [x] = d/dx [6ln(y² - 3)]

1 = 6 * (1 / (y² - 3)) * (d/dx [y² - 3])

Simplifying the right side, we have:

1 = 6 / (y² - 3) * (2y * (dy/dx))

Now, solving for (dy/dx), we get:

(dy/dx) = (y² - 3) / (6y)

Now we can substitute the given point (0, 2) into this expression to find dy/dx at x = 0:

(dy/dx) = (2² - 3) / (6 * 2)

       = (4 - 3) / 12

       = 1 / 12

Therefore, the value of dy/dx at x = 0 for the given equation is 1/12.

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Find the partial sum, S5, for the geometric sequence with a = - 3, r = 2. S5 Find the sum: 9 + 16 + 23 + ... + 30 Answer:

Answers

For the geometric sequence with a = -3 and r = 2, the partial sum S5 is -93. The sum of the arithmetic sequence is 115.

To find the partial sum S5 of the geometric sequence with a = -3 and r = 2, we can use the formula for the sum of a geometric series:

Sn = a * (1 - r^n) / (1 - r)

Plugging in the values, we get:

S5 = -3 * (1 - 2^5) / (1 - 2) = -3 * (1 - 32) / (-1) = -3 * (-31) = -93

For the arithmetic sequence 9 + 16 + 23 + ... + 30, we can use the formula for the sum of an arithmetic series:

Sn = (n/2) * (2a + (n-1)d)

where a is the first term, d is the common difference, and n is the number of terms. In this case, a = 9, d = 7, and n = 5. Plugging in the values, we get:

S5 = (5/2) * (2*9 + (5-1)7) = (5/2) * (18 + 47) = (5/2) * (18 + 28) = (5/2) * 46 = 230/2 = 115.

Therefore, the sum of the arithmetic sequence is 115.


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Alexs paid a $1,500 cash advance to Business Solutions.December 15 Purchased $1,100 of computer supplies on credit from Harris Office Products.December 16 Sent a reminder to Gomez Company to pay the fee for services recorded on November 8.December 20 Completed a project for Liu Corporation and received $5,625 cash.December 22-26 Took the week off for the holidays.December 28 Received $3,000 cash from Gomez Company on its receivable.December 29 Reimbursed S. Rey for business automobile mileage (600 miles at $0.32 per mile).December 31 Paid $1,500 cash for dividends.The following additional facts are collected for use in making adjusting entries prior to preparing financial statements for the companys first three months.The December 31 inventory count of computer supplies shows $580 still available.Three months have expired since the 12-month insurance premium was paid in advance.As of December 31, Lyn Addie has not been paid for four days of work at $125 per day.The computer system, acquired on October 1, is expected to have a four-year life with no salvage value.The office equipment, acquired on October 1, is expected to have a five-year life with no salvage value.Three of the four months' prepaid rent have expired. a risk of coopetition is if the companies actions are perceived as group of answer choices collusion. partnering. forbearance. competitive. Calculate the pH of a solution prepared by dissolving 1. 30g of sodium acetate, CH3COONa in 60. 5mL of. 20 M acetic acid, CH3COOH(aq). Assume the volume change upon dissolving the sodium acetate is negligible. Ka of CH3COOH is 1. 75*10^-5 50 Points! Multiple choice geometry question. Photo attached. Thank you! those who believe in the theory of maintain that the governments role in regulating the economy should be focused on lowering taxes and creating incentives for a more productive and efficient use of resources. Find the work done by F over the curve. F = xyi + 8j + 3xk, C r(t) = cos 8ti + sin 8tj + tk, Osts. 77 16 Select one: 27 O a ST/16 (8 sin(8t) cos(8t) + 67 cos(8t))dt O b. ST/16(-8 sin (8t) cos(8t) + 32 sin(8t))dt O c. S"/16 ( sin (8t) cos(8t) + 67 cos(8t))dt 11/16 (8 sin(8t) + 64 cos(8t))dt * Od Steam Workshop Downloader