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physics

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11. You did 150. J of work lifting a 120.-N backpack.
a. How high did you lift the backpack?
b. How much did the backpack weigh in pounds? (Hint: There are 4.448 N in one pound.)

  • physics -

    work=weight*height

    weigh=120N*1lb/4.448N

  • physics -

    30

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