stefanomazzi2008 stefanomazzi2008

22-03-2020
Biology

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PLZ HELP I WILL GIVE BRAINLIESTWhich of the following statements is true? The ratio of work output to work input is always less than one. Only a few machines are 100 percent efficient. Efficiency is calculated by multiplying work input and work output. Some machines are frictionless.

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10-11-2020

Answer:

work input=output

Explanation:

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