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Physics, 05.12.2019 10:31 pukakchiu

If the work put into a lever is 25.0 joules and the work done by the lever is 20.0 joules, what is the efficiency of the lever?

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If the work put into a lever is 25.0 joules and the work done by the lever is 20.0 joules, what is t...

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