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A mechanical machine requires 210 J of work to do 115 J of work in lifting a crate. What is the efficiency of the machine?
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A mechanical machine requires 210 J of work to do 115 J of work in lifting a crate. What is the efficiency of the machine?

User Cespinoza
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Answer:

efficiency is equal to work output over work input times 100 ÷ so the answer for this question is 54.7 percent

User Nashir Uddin
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