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3 years ago

A 2,000 kg car is parked at the top of a 30 m high hill. What is its potential

Physics

1 answer:

Lunna [17]3 years ago

4 0

So the right answer is of option D .

Look at the attached picture

Hope it will help you ...

Good luck on your assignment

~pragya

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Most metals are good electrical conductors because (5 points) they hold their electrons they have a large amount of free electro

Hunter-Best [27]

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Metals are good conductors of electricity because they have free electrons which help in the transfer of charge from one point to another.

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3 years ago

Which part of the microscope is the circular area on the stage that light passes through?

patriot [66]

Answer: The part of the microscope that is the circular area is the APERTURE

I hope this helped!

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1 year ago

a system of four particles moves along one dimension. the center of mass of the system is at rest, and the particles do not inte

Zinaida [17]

The velocity of the particle 4 at time, t = 2.83 s, is -14.1 m/s.

The given parameters;

m1 = 1.45 kg, v1(t) = (6.09m/s) + (0.299m/s^2) × t

m2 = 2.81 kg, v2(t) = (7.83m/s) + (0.357m/s^2) × t

m3 = 3.89 kg, v3(t) = (8.09m/s) + (0.405m/s^2) × t

m4 = 5.03kg

The velocity of the center mass of the particles is calculated as;

McmVcm = m1v1 + m2v2 +m3v3+m4v4

Vcm= m1v1 + m2v2 +m3v3 +m4v4/ Mcm

0 = m1v1 + m2v2 +m3v3 +m4v4/ Mcm

m1v1 + m2v2 +m3v3+m4v4 = 0

m4v4 = -(m1v1 + m2v2 +m3v3)

v4 =-(m1v1 + m2v2 +m3v3)/ m4

The velocity of particle 1 at time, t = 2.83 s;

vi = 6.09 + 0.299× 2.83

v1 = 6.94 m/s

The velocity of particle 3 at time, t = 2.83 s;

v2 = 7.83 + 0.357 × 2.83

v2 = 8.84 m/s

The velocity of particle 3 at time, t = 2.83 s;

v3 = 8.09 + 0.405 × 2.83

v3 = 9.24 m/s

The velocity of particle 3 at time, t = 2.83 s;

v4 = - (m1v1 + m2v2 + m3v3)/m4

v4 = -(1.45×6.94 + 2.81×8.84 + 3.89×9.24)/5.03

v4 = -14.4 m/s

Thus, the velocity of the particle 4 at time, t = 2.83 s, is -14.1 m/s.

Learn more about Velocity here:

brainly.com/question/18084516

#SPJ4

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1 year ago

Two massive particles with identical charge are launched into the uniform field between two plates from the same launch point wi

Svetach [21]

<h2>Answernswe:</h2>

<h2>The interaction between charged object is a non-contact force that acts over some distance of separation.Charge,charge and distance.Every electrical interaction involves a force that highlights the importance of these three variables</h2>

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3 years ago

Give two examples of gravity in the solar system

sattari [20]

-Planets orbiting the sun
- Meteors being pulled into a planet's atmosphere

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2 years ago