Under each diagram right the net force and the direction in which the boxes will move

Answer:

The forward voltage is decreased by 17.31 MV if an identical diode is connected in parallel and the junction diode is operated in a circuit in which it is supplied with a constant current.

Explanation:

There are two instances to consider in this question;

Instance 1: when a single diode is supplied with a constant current II as shown below in (a). We assume that I1 = I which generates a forward voltage V1 across this diode.

Instance 2: when an identical diode is connected in parallel with the previous diode as shown below in (b). In this case the current flowing through each of them is I2 = I/2 and this current generates a forward voltage V2 across each of the two diodes.

V2 - V1 = 2.303 Vt log (I2/I1)

V2 = V1 + 2.303 Vt log (I2/I1)

V2 = V1 + 2.303 * 25 MV * log (I/2/I)

V2 = V1 + 2.303 *25 MV * log (1/2)

V2 = V1 -17.31 MV

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The electric field is a vector field, this requires a vector addition. Add the vectors 52 and 46. So, the x component of the resultant vector is 9.

A single charge, let's assume q1, can produce the electric field shown by

Kq1/r​​​​​​2

When someone adds another charge, it experiences an electric force due to the electric field

Electric force = Electric field x charge =Eq2 = kq1 q2/r​​​​​​2​​​

For adding to vectors, we add the x and y components separately, and then find the resultant vector =

Resultant x component + resultant y component

Adding the X component,

5x+4x=9x

Adding the Y component,

2y+6y=8y

Therefore, the resultant vector is 9x+8y.

The vector sum of vector addition is just the consequence. It is the result of multiplying at least two vectors together. The outcome of adding the displacement vectors A, B, and C is vector R. An appropriately drawn, scaled, vector addition diagram can be used to compute vector R, as illustrated in the diagram.

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The length of a pendulum needed to have a period of 1 second is 0.24 meters or 24 centimeters.

A pendulum represents Simple Harmonic Motion,

The formula for the time period of a pendulum is

T = 2π √l/√g

Where l is the length of the pendulum and g is the acceleration due to gravity on Earth.

We are given that a pendulum has a period of 1 second

So,

1= 2π √l/√g

Squaring both sides

1 = 4π^2√ l/√g

l = g/ 4 π^2

l = 0.24 m

Hence, the length of a pendulum needed to have a period of 1 second is 0.24 meters or 24 centimeters.

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The cannon in projectile motion has a maximum range of: 258.88 m, and a maximum height of: 32.096 m

The formulas for projectile motion that we will use to solve this exercise are:

Where:

Information about the problem:

Applying the maximum range formula we get:

x max = (vi² * sen 2*θ) /g

x max = {(56.0 m/s)² * (sen 2*27.0)} / 9.8 m/s²

x max = 258.88 m

Applying the maximum height formula we have:

h max = (vi² * (senθ)²) / (2*g)

h max = [(56.0 m/s)² * (sin 27.0º)²] / (2 * 9.8 m/s²)

h max = 32.096 m

The projectile motion is the motion whose trajectory describes a parabola having a horizontal and a vertical component of motion.

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Wavelength and frequency are inversely proportional to each other. as wavelength increases, the frequency will decrease.

Frequency is defined as the number of oscillations of a wave per unit of time. The SI unit of frequency is Hertz(H).

Wavelength is defined as the distance between two adjacent points also known as crests. The two points should be in phase. It is measured in meters and it is denoted by λ.

The relation between frequency and wavelength is inverse.

                                          F = 1/λ

If the frequency increases, the wavelength will decrease and vice versa.

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Frequency is inversely proportional to wavelength. As wavelength increases, the frequency will decrease

Wavelength is inversely proportional to frequency, meaning that as one falls, the other rises, and vice versa. A high-frequency wave has a short wavelength and vice versa. The wavelength is the distance between one point and the same point in the next wave cycle. The frequency is defined as the number of times a point on a wave travels through another point in a given period.

The space between two neighboring crests of a wave is defined as its wavelength and in meters. The quantity of wavelengths that move through a specified point in one second is defined as the frequency.

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Answer:

rgg3ge4gg434g4g4g4g44g

Explanation:

grg4g4g4y44h44h

The time taken by the light to travel to the driver is 48.3 x 10^-9 seconds or 48.3 nanoseconds.

The speed of a light wave is given by the following formula,

Speed = Distance/Time

The distance to be covered and the velocity of the light waveis given. From the given information the time taken by the wave to travel the distance can be calculated,

Putting distance = 14.5 m and speed = 3 x 10^8 m/s

3 x 10^8 m/s = 14.5 m/Time

Time = 48.3 x 10^-9 seconds or 48.3 nanoseconds.

Thus, the time taken by the light to travel to the driver is 48.3 x 10^-9 seconds or 48.3 nanoseconds.

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The time taken by the light to travel to the driver is 48.3 x 10^-9 seconds or 48.3 nanoseconds.

The speed of a light wave is given by the following formula,

Speed = Distance/Time

The distance to be covered and the velocity of the light wave is given. From the given information the time taken by the wave to travel the distance can be calculated,

Putting distance = 14.5 m and speed = 3 x 10^8 m/s

3 x 10^8 m/s = 14.5 m/Time

Time = 48.3 x 10^-9 seconds or 48.3 nanoseconds.

Thus, the time taken by the light to travel to the driver is 48.3 x 10^-9 seconds or 48.3 nanoseconds.

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Answer:

Neither of the two options.

Explanation:

Before a bullet is fired, the momentum of the bullet-gun system is zero because of lack of velocity. After the gun is fired, both gun and bullet acquire velocity making them nonzero. Thus, it is impossible for the kinetic energy to be zero because both the bullet and the gun are in motion. Also, the momentum is nonzero momentum is the product of the mass of an object and its corresponding velocity. Once the bullet is fired, both the bullet and the gun gains momentum thus making it nonzero.

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Answer:There are a lot of issues with deforestation. However, for some nations around the world, logging jobs provide stable sources of income that might otherwise be unavailable. But now new research is taking a deeper look into the consequences of logging and asking, at what cost?

So I narrow it down mostly to deforestation, cost , animal population, water resources and etc

Explanation:

The correct answer is 50N.

There can be constant-velocity motion in one of two situations: a body travelling alone (i.e., with no forces acting on it) or a body being acted upon by a system of balanced forces (i.e., with no net force acting on it). The second scenario is known as mechanical equilibrium.

An item in mechanical equilibrium is one that is travelling at a constant or constant speed. This implies that the item is not being affected by any net forces.

When an object is moving over a rough horizontal surface, a force that works in the opposite direction from the object's motion must be supplied to counteract the sliding/kinetic frictional force.

The force of friction is f = 50 N. Additionally, the strength of the delivered force must F=50 N in the motion's direction.

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True, they are comparable. You would need to multiply the base angles on MNP by two to get 80. 100 will be the final angle. Although size is not mentioned, it is the only way that isosceles triangles might be comparable but incongruent.

An isosceles triangle in geometry is one with at least two equal-length sides. It can be defined as having an equilateral triangle as an exception, or as having exactly two sides of equal length or at least two sides of equal length.

An isosceles triangle must have two sides that are the same length to be considered an isosceles triangle. The base of the triangle is the uneven side, and these two sides are referred to as its legs. Additionally, according to the isosceles triangle theorem, the angles that face each of the equal sides must also be equal.

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The cheetah needs 197.8 seconds to complete the 5.50 *100 m distance.

The distance traveled divided by the time taken is the most popular formula for calculating average speed. The average speed is determined by dividing the whole distance by the total time required to complete the distance. The other calculation, provided you have the initial and final speeds, adds them together and divides by 2.20. calculating the time needed for a cheetah to travel 5.50 102 meters.

10 km/h average speed is equal to 10 / 3.6, or 2.78 m/s.

Dist. = 5.50 102

Time =?

average speed = time / distance

time=5.50 x 100/ 2.78

Time = 197.8 s

Therefore, it takes a cheetah 197.8 seconds to travel 5.50 102 meters.

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The angle between the vectors is 0.59 radians.

cos(ϕ)=[tex]\frac{u.v}{|u|.|v|}[/tex]

cos(ϕ)= [tex]\frac{4}{\sqrt{5}\sqrt{6}}[/tex]

ϕ= 43.09°

or 0.59 in radians

The angle that is created at the intersection of two vector tails is called as the angle between the two vectors.

If the vectors are not joined tail-to-tail, we must shift one of the vectors using parallel shifting in order to join them from tail to tail.

The angle between the tails of two vectors defines the distance between them. Either the cross product or the dot product (scalar product) can be used to find it (vector product).

The angle between two vectors always ranges from 0° to 180°, as you should be aware of.

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The displacement, in meters of the particle between times to = 1.0 s and t1 = 3.0 s is Ax= -1.58 and not Ar= - 1.58

The route taken by a body to travel from a starting point to an ending location in a predetermined amount of time and at a predetermined speed is known as the distance travelled.

If the speed is constant, then Distance (d) = v*t (velocity multiplied by time).

Take the integral of the absolute value of the velocity function to get the distance travelled by a particle given its velocity function.

In other words, the area under the velocity function’s curve’s absolute value equals the distance a particle travels.

Speed divided by time equals distance. Time is calculated as distance multiplied by speed.

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The calculated energy is 720 J.

The word "dissipation" is frequently used to refer to energy wastage. Any energy that is lost to the environment and is not converted to usable energy stores is referred to as wasted energy. Such a battery transfers charge by passing it via a potential difference of 12.0 V and providing a change in potential energy with a value equal to U=qV.  We multiply the charge transported by the potential difference to determine the energy output.

U=qV.

U indicates energy here

U=12x60

U=720 J

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Human hox genes are in four clusters: HOXA, HOXB, HOXC, and HOXD for a total of 39 genes. besides conserving the clustering of genes, evolution has also conserved the order of genes within them.

What is a gene?

A gene is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes helps to make molecules called proteins. However, many genes do not synthesis for proteins. Every person has two copies of each gene, one inherited from each parent. Most genes are the same in all people, but a small number of genes (less than 1 percent of the total) are slightly different among the people. Alleles are forms of the same gene with small differences in their sequence of DNA bases. These small differences contribute to each person’s unique physical features.

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Answer:

mass has no effect on acceleration due to gravity

Answer:

gravity

Explanation:

because  mass doesnt matter on gravity

The planet has an approximate mass of: 5.2815*10^10 metric tones

To solve this problem the formulas and the procedures that we have to use  are:

Where:

Information about the problem:

Applying the circumference of a sphere formula and clearing the radius we get:

c = 2 * π * r

r = 23500 km / 2 * 3.1416

r = 3740.132 km

Applying the volume of the sphere formula we get:

v= (4 *π * r³) / 3

v= (4 *3.1416 * (3740.132 km)³) / 3

v = 2,1915 *10^11 km³

By converting the volume units from (km³) to (ml) we have:

v = 2,1915 *10^11 km³ * 1*10^5 ml/1 km³

v = 2.1915*10^16 ml

Applying the density formula and clearing the mass we get:

d = m/v

m = d * v

m = 2.41 g/ml * 2.1915*10^16 ml

m = 5.2815*10^16 g

By converting the mass units from (g) to (metric tone) we have:

m = 5.2815*10^16 g * 1 kg/1000 g * 1 metric tone/1000 kg

m = 5.2815*10^10 metric tones

It is a physical quantity that expresses the ratio of the body mass to the volume it occupies.

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The correct answer is ΔS=11.16kJ/K.

m=3kg

p_1=200kPa

m_f1=3/4m=2.25kg

x_2=1

ΔS=?

x_1=m_g/m=(m-_f1)/m=(3-2.25)/3=0.25

p_1=200kPa

v_f1=0.001061m^3/k g

v_g1=0.88578m^3/k g

s_f1=1.5302k J/k gK

s_fg1=5.5968 k J/kgK

With these data, we may solve for particular entropy in state 1 using the following equation:

s_1=s_f1+x_1g=1.5302+(0.25)(5.5968)

=2.9294 kJ/kgK

Entropy will be obtained in stage 2, but in order to do so, we must first compute a particular volume in state 1 that is identical to the one in state 2, as this is a constant volume process.

The formula for a particular volume is:

v_1=v_f1+x_1v_fg=0.001061+0.25(0.88578-0.001061)=0.22m^3/kg=v_2

Now, we may get particular entropy in state 2 using the Molier diagram for water.

p_2=1/v_2=1/0.22=4.55 kg/m^3

x_2=1⇒s_2=6.65kJ/kgK

Final entropy change is:

ΔS=m(s_2-s_1)

=3(6.65-2.9294)

ΔS=11.16kJ/K

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The result is 30 feet after multiplying 1.25 feet by 24 minutes.by the ant.

the length or width between two objects, points, lines, etc. remoteness is the state or fact of something or someone being physically distant from another. a straight line in space It would take too long to walk seven miles in one hour. x feet times 10 feet

8 minutes, 24 minutes

Cross multiplying results in (10 * 24 = 8x), which leads to 240 = 8x.

30 = x, hence the ant will move 30 feet in 24 minutes.

Flow rate:

1-foot Equals 1.25 feet, 8 minutes, and 1 second

The result is 30 feet after multiplying 1.25 feet by 24 minutes.

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The additional time pass before the ball passes the tree branch on the way back down is 1.913 .

Consider the displacement equation

s(t) = (-g/2)t^2 + v(0)t + s(0)

where g = 9.8 m/s/s is the acceleration due to gravity,

v(0) = 15 m/s is the initial velocity, and

s(0) = 0 is the staring position (the ground).

We want to know when s(t) = 7 m. Thus,

7 = (-9.8/2)t^2 + 15t

We solve for t by solving the quadratic

(-9.8/2)t^2 + 15t - 7 = 0

Using the Quadratic Formula, we get the two roots

t1 = .574 seconds

t2 = 2.487 seconds

These two values represent the times when the ball passes the tree branch. Therefore, the total time between passing the branch is the difference between 2.49 seconds and 0.57 seconds.

Thus, the ball is at 7 meters at both times. The additional time after the first instance is

d = t2 - t1 = 2.487 - .574 = 1.913 seconds

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The amount of acidity or basicity in an aqueous solution is determined by its pH. The concentration of hydrogen ions in the solution can be used to calculate and determine the pH of an aqueous solution.

An aqueous solution's pH is determined using the pH scale, which commonly refers to water and ranges from 0 to 14. (although as discussed below this is not an a formal rule). The pH scale classifies 7 as neutral. A pH value lower than 7 is regarded as acidic. The term "basic" then refers to a pH value greater than 7. High hydronium concentrations and low hydroxide concentrations are characteristics of acidic solutions. High hydroxide concentrations and low hydronium concentrations characterize basic solutions.

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According to the given statement,

The sum of p and Q is 70N , the value of the forces p and Q is

25N

"Distance or quantity" is how magnitude is simply defined. It shows how an object moves when it is in motion, whether that movement is absolute, relative, or of a certain size. It serves as a way to describe something's size or scope. Magnitude is a general term used in physics to describe size or distance.

In order to compare the speeds of a car and a bicycle, the magnitude can be used as an explanation. Additionally, it can be used to describe the length a particular object has travelled or the magnitude of an object's amount.

According to the given value,

The magnitude of Q= the horizontal component of the resultant force.

θ= 90°-30°= 60°

|Q|= 50cos 60°= 25N.

Hence, the sum of p and Q is 70N , the value of the forces p and Q is 25N.

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Distance is = 10 km and displacement is 4 km.

Steve walks 2 km due west. = -5i

They then return to walk south for 3 km. = -3j

After visiting some friends, steven walks 5 km. = - 5

Distance = 2 + 3 + 5 = 10 km

Displacement = [tex]\sqrt{(5)^2 - (3)^2}[/tex] = 4 km

Distance is a numerical or occasionally qualitative size of the way far aside gadgets or factors are. In physics or ordinary utilization, the distance may also consult with a bodily length or an estimation based totally on different criteria.

Distance is the whole motion of an object with no regard for the route. we are able to define distance as how plenty of ground an item has protected notwithstanding its beginning or ending point.

Displacement dimension, honestly a trade-in period, is typically done by counting the range of fringes because the item being measured is displaced. Displacement is a protection mechanism that includes a character shifting terrible feelings from one character or thing to another.

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a. The Earth's average speed relative to the Sun is 2970 m/s

b. The earth's average velocity over a period of one year is 0 m/s

The speed of the earth relative to the sun is given by v = √(GM/r) where

Substituting the values of the variables into the equation, we have

v = √(GM/r)

v = √(6.67 × 10⁻¹¹ Nm²/kg² × 1.989 × 10³⁰ kg/1.5043 × 10¹¹ m)

v = √(13.26663 × 10¹⁹ Nm²/kg/1.5043 × 10¹¹ m)

v = √(8.8191 × 10⁸ Nm²/kg)

v = 2.97 × 10⁴ m/s

v = 2970 m/s

So, the Earth's average speed relative to the Sun is 2970 m/s

The average velocity of the Earth is v = ΔD/T where

Now, since the earth starts and stopps at the same position, D' = D.

So, ΔD = D' - D = 0

Substituting the values of the variables into the equation, we have

v = ΔD/T

v = 0 m/3.1536 × 10⁸ s

v = 0 m/s

So, the earth's average velocity over a period of one year is 0 m/s

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Consider the Gaussian surface in the form of sphere, the electric field between the spheres is radially outwards.

For a positive charge, the electric field lines are projecting outwards of positive charge.

For a negative charge, the electric field lines are projecting inwards of positive charge.

Hence, the electric field points radially outwards.

The physical field that surrounds electrically charged particles, known as an electric field (or E-field), exerts force on all other charged particles in the field, either attracting or repelling them.  Additionally, it describes the physical environment of a system of charged particles. Time-varying electric currents and electric charges are the building blocks of electric fields. One of the four basic interactions (also known as forces) of nature, the electromagnetic field, manifests itself in both electric and magnetic fields.

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The magnitude of vector B is 39 units, and it is pointing to the negative y-direction.

The triangle law of vector addition asserts that when two vectors are represented by two sides of a triangle with the order of magnitude and direction, the magnitude and direction of the resulting vector are represented by the third side of the triangle.

The formula for Resultant of vectors = vector sum of all the vectors.

We have been given that,Vector A = 28j,Vector B =?

So, Resultant of vector A and B = R

R = -11j

R = A + B

-11j = 28j + B

B = -11j - 28j

B= - 39j

Hence, the magnitude of vector B is 39 units, and it points towards the negative y-direction.

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26.0 mL of water were initially present in the graduated cylinder. The water level in the cylinder was 39.0 mL after inserting an object.

Volume is the three-dimensional space inhabited by matter or encompassed by a surface, and it is expressed in cubic units. The SI unit of capacity is the cubic meter (m3), which is a derived unit.

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The precision of the range of instruments was done in the class room with few things like scale volumetric flask based on the criteria mentioned below.

The maximum and minimum range values that an instrument may measure for a quantity or signal, such as amps, volts, or ohms. A lot of multimeters have an auto range feature that automatically chooses the right range based on the measurement's magnitude. This offers the highest resolution of a measurement in addition to a meaningful reading.

Precision is the capacity of an instrument to repeatedly duplicate the same measurement with reliability.

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The average speed of the trip from B to C should be

V2=(ΔL2V1)/(ΔtV1 - ΔL1)

The journey from B to C should be made at an average speed of

 <V> = ΔL/Δt

The entire voyage must take at least

Δt=Δt1+Δt2

Δt - Δt1=Δt2.....eqn.(i).

V1 =ΔL1/Δt1..... eqn.(ii) and V2=ΔL2/Δt2

substituting (Δt - Δt1=Δt2 ) from eqn(i) in the above eqn

V2=ΔL2/(Δt - Δt1)

and substituting the value of Δt1 from eqn(i) in the above equation

V2=ΔL2/(Δt - (ΔL1/V1))

now by rearranging the terms we get

V2=ΔL2V1/(ΔtV1 - ΔL1)

The object's average speed is the total distance it travels in a predetermined amount of time. A scalar value is used to represent the normal speed. It is characterized by the magnitude and lacks direction.

Since speed is a scalar quantity, it lacks direction. It indicates the rate of a moving thing. When a particle's speed is high, it indicates that it is travelling quickly, and when it is low, it indicates that it is going slowly.

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