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English, 17.07.2019 13:30 tre1124

Amachine is supplied energy at a rate of 4,000 w and does useful work at a rate of 3,760 w. what is the efficiency of the machine? a. 96 percent b. 97 percent c. 92 percent d. 94 percent

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Amachine is supplied energy at a rate of 4,000 w and does useful work at a rate of 3,760 w. what is...
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