Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Cant find an appropriate fluids equation

  1. Apr 5, 2006 #1
    Hi guys this is my first post on here, and I like the look of it so far. I've tried to look everywhere for an approprate equation for this question but I cant come up with one, or maybe Im overlooking something.

    What is the minimum power (W) required to pump blood in the human body? Assume a total average pressure rise across the heart of 120 mm Hg.
    Given: 80 beats per minute, stroke volume of 70ml, volumetric output is 336 liters per hour.

  2. jcsd
  3. Apr 5, 2006 #2

    Physics Monkey

    User Avatar
    Science Advisor
    Homework Helper

    Hi Ben,

    Welcome to Physics Forums! It is our policy not to simply give out the answer, but I will give you a good page to help you get started: http://www.rwc.uc.edu/koehler/biophys/3a.html [Broken]

    Let me know if you have any more questions.
    Last edited by a moderator: May 2, 2017
  4. Apr 5, 2006 #3
    Thank you very much for that link it was very helpful. I didn't expect a straight out answer, I was just quoting the problem exactly.

    I got 1.49 watts, which sounds about right.

Share this great discussion with others via Reddit, Google+, Twitter, or Facebook