20. Fig. 10.1 illustrates the energy into and out of a machine.
useful energy output U
input...
Physics, 24.04.2021 14:00 adiaripley6408
20. Fig. 10.1 illustrates the energy into and out of a machine.
useful energy output U
input energy I
machine
wasted energy W
Fig. 10.1
(a) Write an equation that links I, U and W.
(b) Which of these three quantities needs to be as low as possible in order to keep the
efficiency of the machine as high as possible?
Answers: 1
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