1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Question about formulas in fluids

  1. Apr 23, 2013 #1
    When using bernoullis and momentum, gauge pressure is only used in calculations, any atmospheric pressure is generally omitted, i could understand if, for example, using bernoullis, pressure 1 and pressure 2 were both atmospheric, therefore they would cancel out, but when one pressure is atmospheric and another if different it is still omitted. Why is this?
  2. jcsd
  3. Apr 26, 2013 #2

    rude man

    User Avatar
    Homework Helper
    Gold Member

    Because atmospheric pressure can still be subtracted out on both sides of the equation.
    But you can't have it on one siode and not the other.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted

Similar Discussions: Question about formulas in fluids