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Fluid problem

  1. Sep 8, 2009 #1
    1. The problem statement, all variables and given/known data

    I don't know why everybody ignore my urgent questions.
    I do not know what to do seriously.

    What is the difference in blood pressure (mm-Hg) between the top of the head and bottom of the feet of a 1.60-m-tall person standing vertically?

    I know △p = pgh but in this book, they do not gives to any values.

    I want to know how it works if I don't know p

    2. Relevant equations

    △p = pgh

    3. The attempt at a solution

    I know the gh values so... △p = p(9.8m/s^2)(1.60m)

    but, I don't know what the hell is this.
  2. jcsd
  3. Sep 8, 2009 #2
    Blood pressure in the human body not only depends on the gravity as is is a dynamic fluid which is constantly compressed by the heart beats.
  4. Sep 8, 2009 #3


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    Science Advisor

    If rho is not given then express your answer as a percentage of rho.

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