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3 years ago

99 POINTS!!!!

1 answer:

3 0

The situation given above can be answered through the concept of the First Law of thermodynamics which states that the change in internal energy is equal to the difference between the work done and the heat added to the system. The work done by the object is negative and the heat added is positive.
change in internal energy = -500J + 1400 J = 900 J

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IRINA_888 [86]

Initial height: 66.5 m

Explanation:

The problem can be solved by using the principle of conservation of energy.

If we neglect air resistance, the total mechanical energy of the car is conserved during the fall, therefore we can write:

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Learn more about kinetic energy and potential energy:

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2 years ago

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Explanation:

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2 years ago

﻿99 POINTS!!!!

99 POINTS!!!!