# physics

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The drawing shows an intravenous feeding. With the distance of 0.610 m, nutrient solution (ρ = 1010 kg/m3) can just barely enter the blood in the vein. What is the gauge pressure of the venous blood? Express your answer in millimeters of mercury.

• physics -

The guage pressure at the height h = ρgh
the atmospheric pressure = 1.013•10⁵ Pa

ρgh•760/1.013•10⁵ =1030• 9.8•0.61•760/1.013•10⁵=46.2 mmHg

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