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Physics, 04.02.2020 08:44 carlshiabrown

Amechanical device requires 420 j of work to do 230 j of work to lift a crate. what is the efficiency of the device? 190% 0.5% 183% 55%

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Amechanical device requires 420 j of work to do 230 j of work to lift a crate. what is the efficienc...

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