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Homework Help: I need help with flow rate please

  1. Nov 10, 2008 #1
    I need help with flow rate please!!!!!!!

    1. The problem statement, all variables and given/known data

    A pump at ground level creates a gauge pressure of 102 kPa in the water line supplying an apartment building. The water leaves the tank into a pipe at a negligible speed. It travels 10m up through the building and exits through a faucet. The cross sectional area of the faucet is 2.0cm2. (use for water density ρ=1000kg/m3 and acceleration of g=10m/s2). What is the volume flow rate of water leaving the faucet in cm3/s ?


    2. Relevant equations



    3. The attempt at a solution
    Q=A+((2)[(Pa-Pb)-(pgh)]/p)^1/2
     
  2. jcsd
  3. Nov 11, 2008 #2

    tiny-tim

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    Hi alexito01! :smile:

    Can you put the figures in, please?

    It's difficult for us to work out what the letters refer to. :confused:
     
  4. Nov 13, 2008 #3
    Re: I need help with flow rate please!!!!!!!

    I have a question: is this a volumetric pump?

    Why is there a plus sign after A?
    Where has the 102 kPa gone to?
    What's Pa and Pb? They aren't mentioned in the statement.
     
    Last edited: Nov 13, 2008
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