ajccstudent1 ajccstudent1

08-06-2018
English

contestada

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 machine?

A. 96 percent
B. 97 percent
C. 92 percent
D. 94 percent

Respuesta :

TheBusinessMan TheBusinessMan

08-06-2018

D) 94 percent is your answer. To find the efficiency you divide the amount of useful work by the amount of energy supplied.
3,760/4000 = .94 or 94%

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