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Tems11 [23]
2 years ago
13

A car accidentally rolls down a driveway for 8.0m while a person pushes agqinst the car with a foce 850 N to bring it to a stop.

What is the change in kinetic energy for the car?​
Physics
1 answer:
Alex Ar [27]2 years ago
4 0

Given what we know, we can confirm that the change in kinetic energy is a negative value, given that the <u>final value </u>will be zero.

<h3>What is kinetic energy?</h3>
  • This is the energy of movement.
  • As the car is in motion, it has kinetic energy.
  • However, as the car slows down, it loses this energy.
  • Once the car stops,<em><u> it no longer has kinetic energy. </u></em>
  • Given that the change in kinetic energy is the <em><u>final value </u></em>minus the <em><u>initial</u></em>, and the final is zero, this will cause the change in kinetic energy for the car to be a negative value.

Therefore, since kinetic energy is the energy of movement, we can confirm that the change in kinetic energy for the car will be a negative value caused by the car coming to a complete stop.

To learn more about kinetic energy visit:

brainly.com/question/999862?referrer=searchResults

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Answer:

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Explanation:

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8 0
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The average speed between earth and the sun is 1.50 x10^8 km. Calculate the average speed of the Earth in its orbit in kilometer
cluponka [151]

Answer:

The average speed of the earth in its orbit is 29.86km/s

Explanation:

The average distance between the Earth and the Sun is 1.50x10^{8} km.

The average speed of the earth in its orbit can be found by the next equation :

v = \frac{2 \pi r}{T}  (1)

Where r is the radius and T is the period.

In this case, the orbit of the Earth can be considered as a circle

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It takes 1 year to the Earth to make one revolution around the Sun. Therefore, its period will be 365.25 days.

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7 0
3 years ago
Read 2 more answers
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