The heart of a man pumps 5 liters of blood through the arteries per minute at a pressure of 150 mm of mercury. If the density of mercury be `13.6xx10^(3) kg//m^(3)` and `g=10 m//s^(2)` then the power of heat in watt is :

Options

A. 1.5
B. 1.7
C. 2.35
D. 3

Answer

B

Explanation

`P=(W)/(t)=(mgh)/(t)=(V)/(t)rhogh`
`=(5xx10^(-3))/(60)xx13.6xx10^(3)xx10xx150xx10^(-3)`
`=(5xx13.6xx150)/(6)xx10^(-3)`
`=1700xx10^(-3)`
P=1.7 watt