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प्रश्न
The work done by the heart is 1 Joule per beat. Calculate the power of the heart if it beats 72 times in one
उत्तर
Total work done by the heart in one minute (i.e. 60 s.) is 72 beats or 72 joules.
∴ Power of heart =`("W(in Joules)")/("Time(in s)")=72/60"watts"` = 1.2 watts.
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