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Grade 10Thermal Physics

A human heart discharges 75 mL of blood at each beat against a pressure at 0.1 mm of Hg. Calculate the power of the heart assuming that the pulse frequency is 80 beats/min. Given density of mercury = 13.6 * 10000 kg m-3.

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7 Years agoGrade 10
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1 Answer

Profile image of Arun
7 Years ago
Power= Pressure x Vol of blood/ time
= 13600 x 9.8 x 0.1 x (80 x80 x 10⁻⁶)/60
=1.421 W
 
hope it helps
 
Regards
Arun

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