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Solids and Fluids

  1. Apr 18, 2007 #1
    1. The problem statement, all variables and given/known data
    In a sample of seawater taken from an oil spill, an oil layer 4.0 cm thich floats on 55 cm of water. If the density of the oil is 0.75 x 10^3 kg/m^3, what is the absolute pressure on the bottom of the container.

    p= 0.75x10^3 kg/m^3
    g = 9.8m/s^2
    h=.55m
    p=?
    pa = density of seawater??

    2. Relevant equations
    p=pa+ pgh


    3. The attempt at a solution

    p = pa+ (0.75x10^3 kg/m^3)(9.8m/s^2)(.55m)

    4 cm =??:confused:
     
  2. jcsd
  3. Apr 18, 2007 #2
    sg of sea water about 1.025
    you need to add all pressures, from p=density*g*h of the two columns plus ambient.
     
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