A system loses 510 J of potential energy. In the process, it does 430 J of work on the environment and the thermal energy increases by 100 J

Question

A system loses 510 J of potential energy. In the process, it does 430 J of work on the environment and the thermal energy increases by 100 J.

Required:
Find the change in kinetic energy.

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Khải Quang 5 years 2021-08-16T01:58:37+00:00 1 Answers 21 views 0

Answers ( )

  1. thienan
    0
    2021-08-16T01:59:38+00:00
    Reply

    Answer:

    20J

    Explanation:

    The computation of the change in kinetic energy is shown below:

    As we know that

    Work was done on system =  change in potential energy + change in kinetic energy + change in thermal energy

    -430J = -510J + change in kinetic energy + 100J

    -430J = -410J + change in kinetic energy

    So, the change in kinetic energy is 20J

    We simply applied the above formula to find out the change in kinetic energy

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