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19. The human heart discharges 75CC of blood through the arteries at each beat against an average pressure of 10cm of mercury. Assuming that the pulse frequency is 72 per minute the rate of working of heart in watt, is : (Density of mercury = 13.6 g/CC and g = 9.8ms-2)

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The human heart discharge 75 cc of blood through the arteries at each beat against an average pressure of 10 cm of mercury.Assuming that the pulse frequency is 72 per minute,the rate of working of heart in watt is (Density of mercury = $$13.6 gm/cc$$ and $$g = 9.8 m/s^2$$)
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