1.(adsbygoogle = window.adsbygoogle || []).push({}); The drawing shows an intravenous feeding. With the distance d=0.38 m, nutrient solution (rho = 1012 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.

d=.38m

p=1012

P=pgh

P=1012*9.81*.38= 3 772.5336 mm ??

Now, I know this is not correct, do I need to add the atmospheric pressure to the final answer (1.01 × 105 Pa) ?

2.A hydraulic lift is lifting a car that weighs 12 kN. The area of the piston supporting the car is A, the area of the other piston is a, and the ratio A/a is 105.6. How far must the small piston be pushed down to raise the car a distance of 2 cm? [Hint: Consider the work to be done.]

I know :

d=.2m

F=1200N

A=105.6

a=1

A is pushing the car up and I need to find out how far a needs to travel in order to achieve 2m. What are the pressure formula relating distance that I could use to solve this one? Thanks!!

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# Homework Help: Two pressure problems

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