Physics
Physics, 23.08.2019 21:30, sanaiajohnson56

Amachine is supplied energy at a rate of 4,000 w and does useful work at a rate of 3,760 w. what is the efficiency of the machine?

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Amachine is supplied energy at a rate of 4,000 w and does useful work at a rate of 3,760 w. what is...

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