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How much work is required to lift a 3.3-kg concrete block to a height of 1.2 m?

  • science - ,

    Same procedure qs previous prob.

  • science - ,

    I lift a chair that weights 30 lbs and 3 meters.how much did I do?

  • science - ,

    The man lifted the 15 pound weight 2 feet above his head. How much work was done?

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