Electric energy to raise a heavy mass

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A machine uses 1000 J of electric energy to raise a heavy mass, increasing its potential energy by 300 J. What is the efficiency of this process?

Reference no: EM131095820

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Electric energy to raise a heavy mass : A machine uses 1000 J of electric energy to raise a heavy mass, increasing its potential energy by 300 J. What is the efficiency of this process?
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