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the work done in lifting a 600-N barbell 1.6m above the floor.

What is the gain of potential energy of the barbell when it is lifted to this height?

Express your answer to two significant figures and include the appropriate units.

  • Physics -

    the same as the work done lifting it
    m g h = 600 * 1.6 Joules

  • Physics -

    840 J for both. The work it takes to get it to that height equals the amount of potential energy it has up there.

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