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: Pressure Question

  1. Mar 27, 2010 #1
    1. The problem statement, all variables and given/known data
    A test tube standing vertically in a test-tube rack contains 2.5cm of oil (Density=0.81 g/cm^3) and 6.5cm of water. What is the pressure on the bottom of the test tube?


    2. Relevant equations
    P=F/A

    P=Dhg where d=density, h=heigh, and g=gravity.


    3. The attempt at a solution

    P=(0.81)(9cm {2.5cm+6.5cm})(9.80)

    P=71.442 Pa


    Is this correct?
     
  2. jcsd
  3. Mar 27, 2010 #2
  4. Mar 27, 2010 #3
    bump again.
     
  5. Mar 27, 2010 #4
    bump bump
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook