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26 November, 07:23

The total energy in a system is 675 J. The kinethe energy changes from 296 J to 432 J. Which statement best describes the

potential energy of this system?

It changes from 296 J to 432 J.

It changes from 379 J to 243 J.

O It changes from 432 J to 296 J.

O It changes from 243 J to 379 J.

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Answers (1)
  1. 26 November, 10:31
    0
    The potential energy changes from 379 J to 243 J

    Explanation:

    We have,

    Total energy in a system is 675 J.

    The kinetic energy changes from 296 J to 432 J.

    Total energy is the sum of kinetic energy and the potential energy.

    If kinetic energy is 296 J then,

    P = 675 - 296 = 379 J

    If kinetic energy is 432 J then,

    P = 675 - 432 = 243 J

    So, the potential energy changes from 379 J to 243 J. Correct option is (b).
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