An archerfish squirts water with a speed 2 m/s at an angle 50 degrees above the horizontal, and aims for a beetle on a leaf 3cm above the water surface. (A) At what horizontal distance from the beetle should the archerfish fire if it is to hit its target in the least time? (B) How much time does the beetle have to react?

Answers

Answer 1

A ) The horizontal distance from the beetle, the archerfish should fire if it is to hit its target in the least time = 1.19 m

B ) The time beetle have to react = 0.93 s

T = ( [tex]u_{y}[/tex] + √ [tex]u_{y}[/tex]² - 2 g H ) / g

T = Total time taken

g = Acceleration due to gravity

H = Height above the ground

[tex]u_{y}[/tex] = Y-component of initial velocity

u = 2 m / s

θ = 50°

H = 3 cm

[tex]u_{y}[/tex] = u sin θ

[tex]u_{y}[/tex] = 2 * sin 50°

[tex]u_{y}[/tex] = 1.54 m / s

T = ( 1.54 + √ 1.54² - ( 2 * 9.8 * 3 ) ) / 9.8

T = ( 1.54 + √ 56.42 ) / 9.8

T = 9.1 / 9.8

T = 0.93 s

R = [tex]u_{x}[/tex] T

[tex]u_{x}[/tex] = u cos θ

[tex]u_{x}[/tex] = 2 * cos 50°

[tex]u_{x}[/tex] = 1.28 m / s

R = 1.28 * 0.93

R = 1.19 m

Therefore,

A ) The horizontal distance from the beetle, the archerfish should fire if it is to hit its target in the least time = 1.19 m

B ) The time beetle have to react = 0.93 s

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Related Questions

IBangkok, Thailand, and Lima, Peru, are located at opposite positions of Earth's surface. When a rock is dropped in both cities, observers would describe the motion of either rock with a word that means "down."

Where are the two rocks moving?

Responses

They are moving away from each other.
.

One rock is moving due east and the other is moving due west.

They are moving down, which is the same direction in both cities.


They are moving toward each other.

Answers

Answer :dawg you got snaids thats the answer awww man

Explanation:

answer is that of an answer

orce and Motion Unit TestUse the following scenario to answer the question.Taj and Micah chose to go bowling. Taj rolled the ball toward the pins first, knocking them all down.Which of the following is affecting these objects?point)O Gravity is affecting these objects.O An unbalanced force is affecting the objects.O Inertia is affecting these objects.O A balanced force is affecting the objects.

Answers

So lets go through all four answer choices.

The easiest to choose is whether gravity is affecting these objects. Assuming that there is some sort of gravity that would pull the pins down, gravity does affect these objects

Second is inertia.

We know that if an object has inertia, it will try to resist moving/coming to rest. In this case, we know that the pins have inertia because the pins fell over, so we know that the pins do have inertia

The last part is whether these objects have an unbalanced or balanced force. If a balanced force did exist, there would need to a force that would equally counteract the force of the bowling ball, which there isn't. Which means there is an unbalanced force affecting these objects.

Given that the user must choose one, the correct answer would be that an unbla

What is the average velocity of a car that travels 48 km north in 2.0 h?

Answers

Answer: 3.7 seconds.  :)

Explanation:

Answer:

Explanation:

Given:

L = 48 km

t = 2.0 h

__________

V - ?

V = L / t = 48 / 2.0 = 24 km/h

Please do this step-by-step how do you do it when it’s between

Answers

Given:

• Mass of block A = 6.0 kg

,

• Mass of block B = 7.0 kg

,

• Mass of block C = 13.0 kg

,

• Force, F = 13.0 N

Let's find the magnitude of the tension in the rope between B and C.

Let's first find the acceleration.

We have:

[tex]13-T_B+T_B-T_A+T_A=6a+7a+13a[/tex]

Thus, we have:

[tex]\begin{gathered} 13=26a \\ \\ a=\frac{13}{26} \\ \\ a=0.5\text{ m/s}^2 \end{gathered}[/tex]

To find the tension between blocks B and C, we have the equation:

[tex]\begin{gathered} F-T_B=M_C*a \\ \\ T_B=F-M_c*a \end{gathered}[/tex]

Where:

F = 13 N

Mc is the mass of block C = 13 kg

a is the acceleration = 0.5 m/s²

Thus, we have:

[tex]\begin{gathered} T_B=13-13*0.5 \\ \\ T_B=13-6.5 \\ \\ T_B=6.5\text{ N} \end{gathered}[/tex]

Therefore, the magnitude of the tension in the rope between blocks B and C is 6.5 N

ANSWER:

6.5 N

Philip jumps up with to a height of 3 m above the ground. What was Philip's initial velocity? round to the tenth.

Answers

The initial velocity of Philip was 7.66 m/s

Given data:

The vertical height is h=3 m.

Considering ground as the reference, then the initial potential energy of Philip is zero, i.e., PEi=0

The formula for the kinetic energy is given by,

[tex]KE_i=\frac{1}{2}mv^2[/tex]

Here, m is mass and v is the velocity.

After reaching the height of 3 m Philip comes to a stop. It means the final kinetic energy is zero, i.e. KEf=0.

The final potential energy is given by,

[tex]PE_f=mgh[/tex]

Here, g is the gravitational acceleration.

Applying the conservation of energy between initial position and final position.

[tex]\begin{gathered} KE_i+PE_i=KE_f+PE_f \\ \frac{1}{2}mv^2+0=0+mgh \\ v=\sqrt[]{2gh} \\ v=\sqrt[]{2\times9.8\times3} \\ v=7.66\text{ m/s} \end{gathered}[/tex]

Thus, the initial velocity of Philip was 7.66 m/s.

A jet engine applies a force of 300 N horizontally to the right against a 50 kg rocket. The force of air friction 200 N. If the rocket is thrust horizontally 2.0 m, the kinetic energy gained by the rocket is

Answers

We will have the following:

[tex](300N)(2m)+(-200N)(2m)=200J[/tex]

Then, we from the work-kinetic force theorem we will have that the total kinetic energy gained by the rocket was 200 Joules.

why free-fall acceleration can be regarded as a constant for objects falling within a few hundred miles of Earth’s surface.

Answers

The law of universal gravitation on all objects falling near Earth's surface accelerate at a constant rate regardless of their mass. It is because the Earth's mass is so big that the objecs will fall at a constant rate.

IThe alignment of electrons in a magnetic field does not contribute to the properties of magnets true or false?

Answers

To determine whether the given statement is true or false.

Explanation:

The alignment of electrons in a particular direction in a magnetic field form magnetic domains.

These magnetic domains are responsible for magnetic properties.

Thus the given statement is true.

You have a concave mirror with a focal length of 100.0 cm, and you want an image that is upright and 10.0 times as tall as the object. Where should you place the object?Select one:a.9.09 cmb.12.09 cmc.7.12 cmd.5.8 cm

Answers

ANSWER:

a. 9.09cm

STEP-BY-STEP EXPLANATION:

Given:

Focal length = 100 cm

Distance image = -10 cm

We use the following formula to calculate the value of the distance of the object:

[tex]\frac{1}{d_o}+\frac{1}{d_i}=\frac{1}{f}[/tex]

We substitute each value and calculate the distance of the object just like this:

[tex]\begin{gathered} \frac{1}{d_o}+\frac{1}{-10}=\frac{1}{100} \\ \\ \frac{1}{d_{o}}=\frac{1}{100}+\frac{1}{10} \\ \\ \frac{1}{d_o}=\frac{11}{100} \\ \\ d_o=\frac{100}{11} \\ \\ d_o=9.09\text{ cm} \end{gathered}[/tex]

Therefore, the correct answer is option a. 9.09cm

A car is negotiating a flat circular curve of radius 50 m with a speed of 20 m/swithout slipping. The maximum centripetal force (provided by static friction) is 1.2 x10^4N. What is the mass of the car?1) 0.50 x 10^3 kg2) 1.0 x 10^3 kg3) 1.5 x 10^3kg4) 2.0 x 10^3 kg

Answers

We are given a car that is experiencing a centripetal force.

The formula for the force is given by:

[tex]F_c=\frac{mv^2}{r}[/tex]

Where "m" is the mass, "v" is the velocity and "r" is the radius. Now we solve for the mass, first by multiplying both sides by r:

[tex]rF_c=mv^2[/tex]

Now we divide by the velocity squared:

[tex]\frac{rF_c}{v^2}=m[/tex]

Now we replace the known values:

[tex]\frac{(50m)(1.2\times10^4N)}{(20\frac{m}{s})^2}=m[/tex]

Solving the operations:

[tex]1500kg=m[/tex]

Therefore, the mass is 1500 kg.

Derek leaves his physics book on top of a drafting table that is inclined at a 35° angle. The table exerts a force on the book of 18 Newtons, and the force of gravity is 22 Newtons. If the Force of friction acting on the book is 11 Newtons, what is the Net Force on the book?

Answers

The net force on the book is equal to 1.61 N.

What is the net force?

The net force on the object can be defined as the vector sum of all the forces together. Net force becomes resultant force and shows the same effect on the rotational motion as all actual forces.

Given, the angle of the book with the table, α = 35°

The force of friction, f = 11N

The normal force acting on the book, N = 18N

The force of gravity, W = 22 N

The net force along the table is F₁ = Wsinα - f

F₁= 22× sin35° - 11

F₁ = 1.6 N

The net force perpendicular to table is F₂ = W cosα -N

F₂= 22×cos35° -18

F₂ = 0.021 N

The net force on the book is [tex]F_{net} = \sqrt{F_1^2+F_2^2}[/tex]

[tex]F_{net} = \sqrt{(1.6)^2+(0.021)^2}[/tex]

[tex]F_{net} = 1.61N[/tex]

Therefore, the net force on the book is equal to 1.61 Newtons.

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People weigh less on the moon than on the Earth because:the moon is smaller and has less gravity to pull on you.the Earth has less gravity than the Moon.people weigh the same on the moon as they do on Earth.the moon is magnetized.

Answers

Given

People weigh less on the moon than on the Earth

To find

The correct reason for the given statement

Explanation

The moon has much lesser mass than that of the earth. It is also just 60 percent as dense as the earth. So the gravitational pull on the moon is less than on the earth and thus people weigh less on the moon

Conclusion

The correct reason is

the moon is smaller and has less gravity to pull on you.

An arrangement of two pulleys, as shown in the figure, is used to lift a 64.3-kg crate a distance of 4.36 m above the starting point. Assume the pulleys and rope are ideal and that all rope sections are essentially vertical.What is the change in the potential energy of the crate when it is lifted a distance of 4.36 m? (kJ)How much work must be done to lift the crate a distance of 4.36 m? (kJ)What length of rope must be pulled to lift the crate 4.36 m? (m)

Answers

Given data:

* The mass of the crate is m = 64.3 kg.

* The height of the crate is h = 4.36 m.

Solution:

(a). The potential energy of the crate at the initial state is zero (as the height of the crate is zero at the initial state), thus, the change in the potential energy of the crate is,

[tex]\begin{gathered} dU=\text{mgh}-0 \\ dU=mgh \end{gathered}[/tex]

where g is the acceleration due to gravity,

Substituting the known values,

[tex]\begin{gathered} dU=64.3\times9.8\times4.36 \\ dU=2747.4\text{ J} \\ dU=2.75\times10^3\text{ J} \\ dU=2.75\text{ kJ} \end{gathered}[/tex]

Thus, the change in the potential energy is 2.75 kJ.

(b). The work done to lift the crate is equal to the change in the potential energy of the crate.

Thus, the work done on the crate is 2.75 kJ.

(c). As the single is pulling the two ropes to increase the height of the crate, thus, the length of the rope pulled in terms of the height of the crate is,

[tex]l=2h[/tex]

Substituting the known values,

[tex]\begin{gathered} l=2\times4.36 \\ l=8.72\text{ m} \end{gathered}[/tex]

Thus, the length of the rope pulled to lift the crate is 8.72 meters.

The block of a mass 10.2 kg is sliding at an initial velocity of 3.40 m/s in the positive x-direction. The surface has a coefficient of kinetic friction of 0.153.

Answers

m = mass = 10.2 kg

vo = initial velocity = 3.40 m/s

u = coefficient of kinetic friction = 0.153

g= gravity = 9.8m/s^2

a)

Fr = force of kinetic friction = u m g

Fr = 0.153 x 10.2 x 9.8 = -15.30N

b) Block's acceleration

Newton's second law of motion:

F = m*a

a = F/m = -15.30 / 10.2 = -1.5 m/s^2

c) USe the third equation of motion:

2as = vf^2 - vo^2

Where:

Vf= final velocity= 0 m/s

s = displacement

2 * -1.5 * s = 0^2 - 3.40^2

-3s = -11.56

s= -11.56/-3

s= 3.85 m

A sea wave propagates with a speed of 12 cm/s and a length of 0.4 meters,find its period.A:0,1 minB:10sC:1sD:3,33s

Answers

Given:

The speed of the wave is v = 12 cm/s = 0.12 m/s

The wavelength of the wave is

[tex]\lambda\text{ = 0.4 m}[/tex]

To find the period.

Explanation:

The time period can be calculated by the formula

[tex]T=\frac{\lambda}{v}[/tex]

On substituting the values, the time period will be

[tex]\begin{gathered} T=\frac{0.4}{0.12} \\ =3.33\text{ s} \end{gathered}[/tex]

Thus, the time period of the sea wave is 3.33 s

Given the wave described by y(x,t)=5cos[π(4x-3t)], in meters. Find the following. Giveexact answers with units.

Answers

Answer:

a) 5 m

b) 0.667 s

c) 0.5 m

d) 0.75 m/s

e) -5 m

Explanation:

In an equation of the form

y(x, t) = Acos(kx - ωt)

A is the amplitude, ω = 2π/T where T is the period, and k = 2π/λ where λ is the wavelength. In this case, the equation os

y(x,t) = 5cos(π(4x - 3t)

y(x,t) = 5cos(4πx - 3πt)

So, A = 5, k = 4π, and ω = 3π. Then, we can find each part as follows

a) Amplitude

The amplitude is A, so it is 5 m.

b) the period

Using the equation ω = 2π/T and solving for T, we get:

[tex]T=\frac{2\pi}{\omega}=\frac{2\pi}{3\pi}=\frac{2}{3}=0.667\text{ s}[/tex]

So, the period is 0.667 s

c) the wavelength.

using the equation k = 2π/λ and solving for λ, we get:

[tex]\lambda=\frac{2\pi}{k}=\frac{2\pi}{4\pi}=0.5\text{ m}[/tex]

So, the wavelength is 0.5 m

d) The wave speed

The wave speed can be calculated as the division of the wavelength by the period, so

[tex]v=\frac{\lambda}{T}=\frac{0.5\text{ m}}{0.667\text{ s}}=0.75\text{ m/s}[/tex]

e) The height of the wave at (2, 1)

To find the height, we need to replace (x, t) = (2, 1) on the initial equation, so

[tex]\begin{gathered} y(x,t)=5\cos(\pi(4x-3t)) \\ y(2,1)=5\cos(\pi(4\cdot2-3\cdot1)) \\ y(2,1)=5\cos(\pi(8-3)) \\ y(2,1)=5\cos(\pi(5)) \\ y(2,1)=5\cos(5\pi) \\ y(2,1)=5(-1) \\ y(2,1)=-5 \end{gathered}[/tex]

Then, the height of the wave is -5 m.

Therefore, the answers are

a) 5 m

b) 0.667 s

c) 0.5 m

d) 0.75 m/s

e) -5 m

S=3-2t+3t^2
What is the instantaneous velocity and it’s acceleration at t=3s
At what time is the particle at rest

Answers

Answer:

Explanation:

Given:

X(t) = 3 - 2*t + 3*t²

t = 3 s

_______________

V(t) - ?

a(t) - ?

Speed is the first derivative of the coordinate, acceleration is the second.

1)

V(t) = X' =  (3 - 2*t + 3*t²)' = 0 - 2 +6*t = 6*t - 2

V(3) =  6*3 - 2 = 16 m/s

2)

a(t) = X'' = V' = (6*t - 2)' = 6 m/s²

a(3) = 6 m/s²

3)

The body will stop (V = 0 ) in (t) seconds:

V(t) = 6*t - 2

0 = 6*t - 2

6*t = 2

t = 2/6 = 1/3 ≈ 0,33 s

Two capacitors of values of 1.0 μF and 0.50 μF are connected in parallel. The system is hooked up to a 100 V battery. Find the electrical potential energy stored in the 1.0 μF capacitor.Group of answer choices1.0x10-2 J1.9x10-3 J5.0x10-3 J6.5x10-3 J

Answers

5.0x10-3 J

Explanation

Step 1

find the equivalent capacitor,When capacitors are connected together in parallel the total or equivalent capacitance, CT in the circuit is equal to the sum of all the individual capacitors added together

so

[tex]\begin{gathered} C_{eq}=1.0\mu F+0.50\mu F \\ C_{eq}=1.50\mu F \end{gathered}[/tex]

Step 2

We can proceed to use this formula and solve for the potential energy stored in the 1.0mF capacitor.

[tex]\begin{gathered} U=\frac{1}{2}cV^2 \\ U=\frac{1}{2}(0.000001c)(100^2) \\ U=0.005\text{ J} \\ U=5\cdot10^{-3\text{ }}J \end{gathered}[/tex]

therefore, the answer is

5.0x10-3 J

I hope this helps you

Hello please could you help me with the physics ?

Answers

In order to calculate the amount of energy needed, we can use the formula below:

[tex]Q=m\cdot c\cdot\Delta T[/tex]

Where Q is the amount of energy in Joules, m is the mass in kg, c is the specific heat coefficient and DeltaT is the change in temperature.

So, for m = 0.8, c = 4.2*10^3 and DeltaT = 85 (from 15°C to 100°C), we have:

[tex]\begin{gathered} Q=0.8\cdot4.2\cdot10^3\cdot85 \\ Q=285600\text{ J} \end{gathered}[/tex]

Then, for the energy needed to evaporate the water, we have a similar formula:

[tex]Q=m\cdot L[/tex]

Where L is the latent heat. So, for L = 2.3 * 10^6, we have:

[tex]\begin{gathered} Q=0.8\cdot2.3\cdot10^6 \\ Q=1840000\text{ J} \end{gathered}[/tex]

Electric charges exist within atoms. Is this true or false?

Answers

This statement is true because within atoms we have protons and electrons, which have positive and negative charge, respectively.

Therefore, the answer is true.

Answer: True

Explanation:

Aced the test

1.Can money by happiness?why and Why not?
2.Are you happy with the possession you have? Yes/No Why? ​

Answers

Answer:

Explanation:

1) No it can't

2)Yes I am

Answer:

yes it's can be, but Don't put money first

You push a 2.1 kg object on a table with 42N of force. The box then slowly skids to a stop over 2.2 m. What is the force of friction?

Answers

If you push a 2.1 kg object on a table with 42N of force. The box then slowly skids to a stop over 2.2 meters, then the force of the friction would be 42 Newtons as per the concept of limiting friction.

What is friction?

Friction is a type of force that resists or prevents the relative motion of two physical objects when their surfaces come in contact.

As given in the problem if push a 2.1 kg object on a table with 42N of force. The box then slowly skids to a stop over 2.2 m, then we have to find the force of the friction.

The force of the friction = The limiting friction force  

If you apply 42N of force to a 2.1-kilogram item on a table. According to the theory of limiting friction, when the box gently slides to a halt over a distance of 2.2 meters, the force of friction would be 42 Newtons.

 

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A car initially at rest travels with a uniform acceleration of 8 m / s^2 . Calculate the distance covered by the car in 3 s .

Answers

We know that

• The initial velocity is zero because it starts from rest.

,

• The acceleration is 8 m/s^2.

,

• The time elapsed is 3 seconds.

Use a formula that relates initial velocity, acceleration, time, and distance.

[tex]d=v_0t+\frac{1}{2}at^2[/tex]

Use the given magnitudes to find d.

[tex]\begin{gathered} d=0\cdot3\sec +\frac{1}{2}\cdot(8\cdot\frac{m}{s^2})(3\sec )^2 \\ d=4\cdot\frac{m}{s^2}\cdot9s^2 \\ d=36m \end{gathered}[/tex]Therefore, the distance covered is 36 meters.

A 4.0 kW clothes dryer is connected to a 220 V circuit. How much current does the dryer use?

Answers

Given:

The power take by the dryer is

[tex]\begin{gathered} P=4\text{ kW} \\ P=4000\text{ W} \end{gathered}[/tex]

The dryer is connected to source of

[tex]V=220\text{ V}[/tex]

Required: the current use by the dryer

Explanation:

we know that power taken by any appliance is given by

[tex]P=VI[/tex]

here, V is the voltage of the source and I is the current drawn by the electric appliance.

Plugging all the values in the above formula, we get

[tex]\begin{gathered} 4000\text{ W}=220\text{ V}I \\ I=\frac{4000\text{ W}}{220\text{ V}} \\ I=18.18\text{ A} \end{gathered}[/tex]

Thus, the current used by the dryer is

[tex]18.18\text{ A}[/tex]

Calculate the force between charges of 5.0x10^-8c and 1.0x10^-7c if they are .15m apart

Answers

Given data:

[tex]\begin{gathered} Q_1=5.0\times10^{-8}\text{ C} \\ Q_2=1.0\times10^{-7}\text{ C} \\ r=0.15\text{ m} \end{gathered}[/tex]

The electrostatic force is given as,

[tex]F=\frac{KQ_1Q_2}{r^2}[/tex]

Here, K is electrostatic force constant.

Substituting all known values,

[tex]\begin{gathered} F=\frac{9\times10^9\times5\times10^{-8}\times1\times10^{-7}^{}}{(0.15)^2} \\ =2\times10^{-3}\text{ N} \end{gathered}[/tex]

Therefore, the force between the charges is 2×10^(-3) N. Hence, option (d) is the correct choice.

A stone is thrown vertically upwards from a height of 1.5m and lands on the ground 6s later. What was the magnitude of the initial velocity?

Answers

Answer:

2.5m/s is the correct answer

Suppose an elephant has a mass of 2750 kg.How fast, in meters per second, does the elephant need to move to have the same kinetic energy as a 66.5-kg sprinter running at 9.5 m/s?

Answers

Given:

The mass of the elephant is M = 2750 kg

The mass of the sprinter is m = 66.5 kg

The speed of the sprinter is v = 9.5 m/s

The kinetic energy of the sprinter is equal to the kinetic energy of the elephant.

Required: The speed of the elephant

Explanation:

The kinetic energy of the sprinter is equal to the kinetic energy of the elephant.

The speed of the elephant can be calculated by the formula

[tex]\begin{gathered} K.E._{elephant}=K.E._{sprinter} \\ \frac{1}{2}MV^2=\frac{1}{2}mv^2 \\ V=\sqrt{\frac{mv^2}{M}} \end{gathered}[/tex]

On substituting the values, the speed of the elephant will be

[tex]\begin{gathered} V=\sqrt{\frac{66.5\times(9.5)^2}{2750}} \\ =1.48\text{ m/s} \end{gathered}[/tex]

Thus, the speed of the elephant is 1.48 m/s

Final Answer: The speed of the elephant is 1.48 m/s

Physics
Hello how to solve this

Answers

2.15 mL of water will spill from the beaker when a 400mL glass beaker at room temperature is filled to the brim with cold water.

What is temperature and how come 2 mL of water spills off the beaker?Temperature as studied always is the measure for the degree of hotness or coldness.Here in the question is given a glass beaker of 400 mL which is at room temperature .Now the beaker is warmed up to 30 degree celsius, and then some of amount of water spilled.Change in volume = beta x v1 x change in temperature = 210 x 10^-4 x 400 x ( 30 - 4.4) = 2.15 mL.Hence the amount of water that will spill from the beaker would be 2.15 mL.

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An object is placed 15cm in front of a convex mirror and an image is produced 5cm behind the mirror. Calculate the focal length of the mirror

Answers

The inverse of the optical power of an optical system, the focal length provides a measurement of how strongly the system converges or diverges light. A system's light converges when the focal length is positive, while it diverges when the focal length is negative.

A diverging mirror with the reflective surface bulging towards the direction of the light source is referred to as a convex mirror. Since they reflect light outward, they are not employed to focus light. Convex mirrors create an image that is smaller than the object and grows larger as it approaches closer to the mirror.

Given that the image of an object is generated v cm from a spherical mirror with a focal length of f, and that the object is situated u cm in front of the mirror, u, v, and f are connected by the equation 1/f=1/u + 1/v. The mirror formula is the term used to describe this equation. Both concave and convex mirrors can be used using the formula.

Therefore using, 1/f = 1/u + 1/v

1/f = 1/15 + 1/5

1/f = (1 + 3) / 15

f = 15/4 = 3.75cm

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You see a blue star directly over Avalon's equator. It appears to be moving north at 5.0 arcseconds per year. How far away is this star from Avalon (in parsecs - a parsec is ).

Answers

The distance of the star from the sun is 1.25 parsecs.

What quantity is measured in arcseconds?

The distance of the sun to other celestial bodies is measured in arcseconds.

The distance from the sun to a celestial object is the reciprocal of the angle, measured in arcseconds, of the object's apparent movement caused by parallax.

2 arcseconds = 0.5 parsecs

5 arcseconds = ?

= (5 arcseconds x 0.5 parsecs) / (2 arcseconds)

= 1.25 parsecs

Thus, the star appears to be moving north at 1.25 parsecs per year.

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50 points-Match the descriptions with the words.------------------This cabinet level position was created in 1889.This legislation provided money for experimental fields.The act created agricultural extension services.------------------Smith-Lever ActHatch ActSecretary of Agriculturecapitalistscorporations he characteristic that indicates that a data warehouse is organized around key high-level entities of the enterprise is: integrated. subject-oriented. time-variant. nonvolatile. how did film noir and disneyland each offer different and often competing visions of southern california in the post-world war ii era? how did both tap into the prevailing concerns, aspirations, and fears of the postwar period? how were images of race and gender expressed in both film noir and disneyland in ways that complemented these contrasting and complementary visions? I need help please quickly I need help10(2 + 3) - 8 3. What this word means Assumption Sydney picked 28 raspberries and 35 blueberries to make two desserts.She needs 4 raspberries for each raspberry tart and 5 blueberries for eachblueberry tart. She wants to know how many desserts she will be able tomake with the berries. 2. How do you think their city planning impacted later civilizations? Indus valley River a tank is 10 m long, 4 m wide, 4 m high, and contains kerosene with density 820 kg/m3 to a depth of 3.5 m. (use 9.8 m/s2 for the acceleration due to gravity.) (a) find the hydrostatic pressure on the bottom of the tank. f(x) = -2x + 2xFind f(-8) Reading:Summaries AssessRead the following passage. Then, answer the question and complete theactivities that follow.Our bodies are adapted to Earth's gravity. Our muscles are strong in order toovercome gravity as we walk and run. Our inner ears use gravity to keep us upright.And because gravity wants to pull all our blood down into our legs, our hearts aredesigned to pump hard to get blood up to our brains.In space, the much weaker gravity makes the human body change in manyunexpected ways. In microgravity, your blood is rerouted, flowing from the legs, whichbecome thin and sticklike, to the head, which swells up. The extra liquid in your headmakes you feel like you're hanging upside down or have a stuffed-up nose.-from "Life Without Gravity" by Robert Zimmerman1. What is the main idea of the passage?2. Name two details that support the main idea..3. Write a brief summary of the passage on the lines provided. Assume that Jim Bruce and Valerie are 3 of the 17 members of the class, and that of the class members will be chosen randomly to deliver their reports during the next class meeting. What is the probability that Jim Bruce and Valerie are selected in that order? Find the equation of the line with slope = 5 and passing through (-7,-29). Write your equation in the formy = mz+b. Metric area unit conversion with decimal valuesTammy has a rectangular poster. The poster is 1.2 meters long and 0.9 meters wide. What is the area of the poster in square centimeters? Do not round youranswer.cmcmcm Leila runs at 12 mph find the number of miles she can travel if she runs for 2 hours20 POINTS ANSWER I WILL MARK BRAINLIEST!!!!!!!!!! y=x-6y=x+2 how to solve this problem to find the height of a tree, a group of students devised the following method. A girl walks toward the tree along it's shadow until the shadow of the top of her head coincide with the shadow of the top of the tree. if the girl is 150 cm tall, her distance to the foot of the tree is 13 meters, and the length of her shadow is 3 m, how tall is the tree? can you explain what the 8th question is asking then answer it please x-4y=-2Determine if the given ordered pair, (2, 1), satisfies the given equation.O YESO NO provide an appropriate response. the length of time it takes college students to find a parking spot in the library parking lot follows a normal distribution with a mean of 7.0 minutes and a standard deviation of 1 minute. find the cut-off time which 75.8% of the college students exceed when trying to find a parking spot in the library parking lot. Find the y intercept: y=3.5x-7