please solve it problem is of her advance
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work done by heart will be given by ,W=PΔv
here P is pressure
Δv is the volume of blood being pumped
now,P =phg
h=height of the Hg column = 130 mm = 0.13 m
p=density of the Hg = 136 g/cm^3 = 13.6*10^3 kg/m^3
g = acceleration due to gravity = 9.8 m/s²
Δv = 4000 cc = 4l = 4×10^-3 m³
P=W/t = hpgΔv/t
where,t = 60 s
P=013 × 13.6 × 10³ × 9.8 × 4 × 10^-3 / 60
=69.30 / 60
=1.15 W
thus, power = 1.15 W
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