Q.30 The average work done by a human heart while it beats once is 0.5 J. Calculate the power used by the heart if it beats 72 times in a minute.
Given, average work done by a human heart per beat = 05 J
Total work done during 72 beats
=72×0.5J=36JStep 2: Find power used by the heart Power = Work done Time =36J60s=0.6W
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