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Find the percentage of the total work lost to friction if 21.3 J of work is...

Find the percentage of the total work lost to friction if 21.3 J of work is put into pushing a block up a ramp resulting in 9.42 J of stored potential energy.

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percentage of the total work lost to friction = (21.3-9.42)*100/21.3 = 55.8 percent

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