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Fluid flow question

  1. Nov 18, 2007 #1


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    1. The problem statement, all variables and given/known data
    oil w/ density of 850 kgm^3 goes through a pipe diameter 8 cm at a rate of 9.5 liters / s.
    what is the speed of the oil?

    2. Relevant equations

    v_1 = (dv/dt)/a_1 = (9.5*10^-3)/(pi(.04)^2) = 1.9 m/s

    3. The attempt at a solution

    i have the solution because this problem was given to me. I just dont understand where the 10^-3 came from and how it was derived.
  2. jcsd
  3. Nov 18, 2007 #2


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    Homework Helper

    It comes from converting the volume from litres into m^3.
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