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!

Homework Help: Buoyant Forces

  1. Feb 25, 2009 #1
    A cubical box 24.85 cm on each side is immersed in a fluid. The pressure at the top surface of the box is 109.47 kPa and the pressure at the bottom surface is 112.03 kPa. What is the density of the fluid?

    i used

    P2-P1 divded by gh = p
    i used this to solve for p, when i checked my answer, it was wrong.

    any help?
  2. jcsd
  3. Feb 25, 2009 #2


    User Avatar
    Homework Helper

    Looks okay to me. Did you get 1050 kg/m^3 ?
  4. Feb 25, 2009 #3
    i did. but it keeps comming up wrong :S , there must be something wrong with my CAPA server. ill have a talk with my physics prof tomorroe about it
  5. Feb 25, 2009 #4
    If you wanted to solve for p, wouldnt the equation be:

    [tex]p = p1-p2 / g*h[/tex]

    You used P2-P1.

    I got 1050 too.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook