(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

If the cross-section of the barrel of a pump is 5 square centimeters, the stroke of the piston is 20 centimeters, and the volume of the receiver, in which the air is drawn from, is 1 liter, calculate the ratio of the pressure of the air in the receiver to the original pressure after three strokes of the pump.

2. Relevant equations

p=F/A

3. The attempt at a solution

Force=m*a = (1 liter)(9.81) = 9.81

Area = (5)(20)=100

p=f/a = 9.81/100=.0981

Is this correct so far? how do calculate the ratio?

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# Homework Help: Pressure Ratio Problem

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