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Ludmilka [50]
3 years ago
8

A machine 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 machi

ne
Physics
1 answer:
Dmitry_Shevchenko [17]3 years ago
8 0
                = (3,760 joule/sec) / (4,000 joule/sec)
 
               =    3,760 / 4,000  =  0.94  =  94%
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