Physics, 06.01.2021 16:20 buggamarshall85
Which of the following statements is true?
1)Efficiency is calculated by multiplying work input and work output.
2)a few machines are 100 percent efficient.
3) Some machines are frictionless.
4)The ratio of work output to work input is always less than one.
Answers: 3
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Which of the following statements is true?
1)Efficiency is calculated by multiplying work input and...
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