1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Pressure Ratio Problem

  1. Jan 31, 2010 #1
    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?
     
  2. jcsd
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted



Similar Discussions: Pressure Ratio Problem
Loading...