A rocket fires its engines to launch straight up from rest with an upward acceleration of 5 m/s2 for 10 seconds. After this time, the engine shuts off and the rocket freely falls straight down back to Earth's surface.

Please help! This is for AP Physics.

Answer:

36 ml

Explanation:

The volume of the water was 50 ml without anything in it. When you put something in water, the amount of volume that it rises is the volume of the object put into it. It rose up to 86 ml.

86-50=36

36 ml

At the end of the laps, the runner's displacement is zero.

Answer:

To get your answer multiply 637N by 10N/kg to get 6370kg

The mass of an object weighing 637 N on earth is 65 kg. The acceleration due to gravity on mars is 3.72 m/s². Then its weight on mars is 241.8 N.

The gravitational force is the force by which an object attracts other object into its center of mass. Earth attracts every objects into its surface and that is why we are all standing on the ground and experience a weight.

The acceleration due to gravity is the acceleration to the downward motion by gravitational force for an object.  The weight of an object is the sum of its mass and acceleration due to gravity of the planet in which the object is placed.

The acceleration due to gravity of earth = 9.8 m/s²

then mass of person weighing 637 N = 637 N/9.8 m/s² = 65 Kg

acceleration due to gravity of mars = 3.72  m/s²

then weight of the mass 65 kg = 65 kg × 3.72  m/s² = 241.8 N.

Therefore, the person will weight 241.8 N at mars.

Find more on gravitational force:

https://brainly.com/question/12528243

#SPJ3

Answer:

They are found at the center and are between 20-50km in diameter. ... The coriolis force deflects the wind slightly away from the center, causing the wind to rotate around the center of the hurricane (the eye wall), leaving the exact center (the eye) calm.

Explanation:

I used google!

Hope this helps :D

Answer:

The correction is the state of mind being for the Fahrenheit that is calculator from anarchy

Explanation:

Answer:

Si system is :kilo miligram kelvin

us system is: Fahrenheit Ounce yard inch

Explanation:

Answer:

This is because a thermometer is only meant for measuring temperature and temperature is not a measure of thermal energy

Explanation:

The reason is because a thermometer is designed and calibrated to measure the temperature of a body.

Although the thermal energy of a body is somehow related to its temperature, the thermal energy of a body is not entirely dependent on the temperature of the body

The thermal energy of a body deals with its heat. While thermal energy basically deals with the amount of heat, temperature deals with the flow from one point to another along the body

So what this means is that since thermometer measures this flow, it cannot be used to ascertain the level of heat ( thermal energy) in the body

Answer:

This is because a thermometer is only meant for measuring temperature and temperature is not a measure of thermal energy

Explanation:

Given that,

A truck drives to a rock quarry at a speed of 20 m/s. The truck takes on a load of rocks, which doubles its mass, and leaves at the same speed of 20 m/s.

To find,

Comparison of the kinetic energy of the truck as it left the quarry with its kinetic energy on the way to the quarry.

Solution,

Kinetic energy of an object is given by:

[tex]K=\dfrac{1}{2}mv^2[/tex]

m is the mass of the truck

[tex]K=\dfrac{1}{2}m\times (20)^2\\\\K=200m\ J[/tex]

If mass is doubled and speed is same i.e. 20 m/s, neew kinetic energy is given by :

[tex]K=\dfrac{1}{2}\times (2m)\times 20^2\\\\K=400m\ J[/tex]

It can be seen that when mass of truck is doubled, its kinetic energy gets doubled.

Answer:

(a). The speed of car will increases.

(b). The speed of car will decreases.

Explanation:

Given that,

A car is traveling from your left to your right at a constant velocity.

We need to find two actions could the driver take

Using given data

(a). If the velocity and acceleration of car to the right

It means the velocity and acceleration of car is in same direction then the speed of car will increases.

(b). If the velocity to the right and the acceleration to the left

It means the velocity and acceleration of car is in opposite direction then the speed of car will decreases.

Hence, (a). The speed of car will increases.

(b). The speed of car will decreases.

Answer:

1,110,114.6 J

Explanation:

The height is 1857m, the mass is 61 kg, and the accelaration is 9.8 m/s^2. Plug in the equation GPE=h*m*a and you get 1,110,114.6.

h= height

m= mass

a= accelaration

GPE= gravitational potential energy

If you are at the grand canyon standing at the edge of a ledge 1857 meters high you have a mass of 61 kilograms, then your gravitational potential energy at the edge of the cliff would be 1111247.37 Joules.

Mechanical energy is the combination of all the energy in motion represented by total kinetic energy and the total potential energy stored energy in the system which is represented by total potential energy.

As total mechanical energy is the sum of all the kinetic as well as potential energy stored in the system.

ME = KE + PE

The total gravitational potential energy at the edge of the cliff would be

PE = m × g × h

PE =61 × 9.81 × 1857

PE =1111247.37 Joules

Thus, the total gravitational potential energy at the edge of the cliff would be  1111247.37 Joules.

Learn more about mechanical energy here, refer to the link given below;

brainly.com/question/12319302

#SPJ5

Answer:

19 pizzas

Explanation:

1 pizza = 3 boys

=> 56 ÷ 3 = 18.666666666666.. or about 19 pizzas

Answer:

not if its moving upwards but eventually it will be on its way down

Explanation:

Answer: Sure

Explanation:

Answer:

Explanation:

Based on the fact that the velocity of person A is more than that of person B, that is from the question, person A has a velocity of 2m/s and person B has a velocity of 1m/s, this clearly shows that person A has the tendency to hit a distance farther from the cliff than person B.

Answer:

Faction

Explanation:

I am not sure by the paper is written by James Madison who opposes republican government

the answer is 0m/s२.

Explanation:

Because when the object is changing position at a constant velocity,the acceleration is 0m/s२.

I hope it'll help u.

Answer:

Options?

Explanation:

Answer:

Unbalanced forces cause in object to move. (apex)

Explanation:

This problem occurs with C. only defective spherical mirrors.

Spherical mirrors can be either concave or convex, depending on their shape. A perfect spherical mirror is one that has a consistent curvature across its surface, which allows all the light rays that strike it to properly converge or diverge and focus at the focal point.

However, a defective spherical mirror is one that does not have a perfect curvature across its surface. This can happen due to manufacturing errors or damage to the mirror. When a spherical mirror is defective, the light rays do not properly focus at the focal point, leading to distorted or blurred images.

On the other hand, parabolic mirrors have a unique shape that allows them to reflect incoming light rays to a single focal point, providing a sharper and clearer image compared to spherical mirrors.

Therefore, the correct answer is C. only defective spherical mirrors, as they are the ones that do not properly focus the light rays at the focal point.

To learn more about spherical mirrors, here

https://brainly.com/question/34233801

#SPJ2

Answer:

Biodiesel is considered a renewable energy source because it is made with animal fat

Explanation:

Biodiesel is a fuel generated from animal fats, vegetable fats, using a catalyst for chemical formulation of biodisel.

It is a renewable source of fuel, as it can be replenished (renewed) easily & in shorter time, since it is made of animal fats & vegetable fats. Unlike non renewable fuels which take long periods to replenish (renew), like fossil fuels.

So, Biodiesel is considered a renewable energy source because it is made with animal fat

Answer: D

Explanation: Took the test

Answer:

C

Explanation:

In order for an experiment to be valid need to be conducted with several tested variables

Answer:

It's A

Explanation:

It makes sense ( please mark me brainliest)

Answer:

About 199.864 grams, 4.406 lbs.

Explanation:

Answer:

a

  The largest diameter is   [tex]d =  0.523 \ m [/tex]

b

The number of revolution is   [tex]n  =  2.132 *10^{4}[/tex]

Explanation:

From the question we are told that

   The kinetic energy of the electron is  [tex]K =  6.5 MeV =  6.5 *10^6 * 1.60 *10^{-19} = 1.04 *10^{-12} \  J[/tex]

    The magnetic field is  [tex]B  =  1.4 \  T[/tex]

       The time is  [tex]t =  1 ms =  1*0^{-3} \  s[/tex]

Generally the kinetic energy of the proton is mathematically represented as

           [tex]KE  =  \frac{1}{2}  *  m * v^2[/tex]

Here m is the mass of the  proton with a value  [tex]m = 1.672 *10^{-27} \  kg[/tex]

    =>  [tex]v  = \sqrt{ \frac{2 *  K }{ m} }[/tex]

=>      [tex]v  = \sqrt{ \frac{2 *  1.04 *10^{-12}  }{ 1.672 *10^{-27}} }[/tex]

=>      [tex]v  = 3.5271 * 10^{7} \  m/s [/tex]

Generally the radius of the largest orbit is mathematically represented as

       [tex]r =  \frac{ m *  v}{ B  *  e}[/tex]

Here e is the charge on a proton with the value [tex]e =  1.60 *10^{-19} \  C[/tex]

         [tex]r =  \frac{ 1.672 *10^{-27} * 3.5271 * 10^{7} }{  1.4  *    1.60 *10^{-19} }[/tex]

=> [tex]r = 0.261 \ m [/tex]

Generally the diameter is

     [tex]d =  2 *  r[/tex]

=>       [tex]d =  2 *  0.261[/tex]

=>       [tex]d =  0.523 \ m [/tex]

Gnerally the period of revolution round the orbit is mathematically represented as

       [tex]T  = \frac{2 \pi  *  m }{B  *  e}[/tex]

=>    [tex]T  = \frac{2 * 3.142  *  1.672 *10^{-27}  }{1.4 *  1.60 *10^{-19}}[/tex]

=>    [tex]T  =  4.691 *10^{-8} \  s [/tex]

Generally the number of revolution is mathematically represented as

      [tex]n  =  \frac{t}{T}[/tex]

     [tex]n  =  \frac{1*10^{-3}}{4.691 *10^{-8} }[/tex]

      [tex]n  =  2.132 *10^{4}[/tex]

Answer:

B

Explanation:

Heat increase molecular motion

Answer:

B

Explanation:

The more motion there is in the molecules, the more thermal energy is absorbed.

Answer:

1) 50 seconds 2) 100°C

Explanation:

(Follows formula of Power=Energy/Time)

1) 500W x X = 2000J/kg°C x .25kg x 50°C

X = 50 seconds.

2) 2000W x 300s = 1000J/kg°C x 2kg x X

X = 300

Initial temperature => 400°C-300°C = 100°C

Answer:

298800 m

Explanation:

[tex]v = \frac{d}{t} [/tex]

V=speed

d=distance

t=time

[tex]d = vt[/tex]

Change hours to seconds

It will be 36000s

8.3m/s * 36000s

=298800m

Friction force is a force that opposes relative motion of two bodies that have contacting surfaces

Yes, the velocity of the book will change as it moves across the surface with friction

Reason:

According to Newton's first law of motion, a body will remain at rest or move with a constant speed in a straight line unless acted on by a force

Friction force, f = Normal reaction, N × Coefficient of friction, μ

A surface with friction has frictional force that opposes the relative motion of an object in surface contact across it

When an object such as a book moves across a surface with friction, the friction force acts on the book having a velocity, opposing the motion of the book, therefore, slowing down the book

Therefore, the velocity of the will change (reduce) as it moves across the surface with friction

Learn more about friction here:

https://brainly.com/question/1021839