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Homework Help: Physics pressure/density question

  1. Sep 24, 2008 #1
    Physics "pressure/density" question

    1. The problem statement, all variables and given/known data

    A cube of wood of side 4.0 cm floats in fresh water with one quarter showing above the surface.

    a.i.) Calculate the water pressure on the base of the cube
    a.ii.) Calculate the density of the wood

    b.) What fraction of the volume of the cube would be immersed if it was floated in olive oil?

    2. Relevant equations

    Olive oil = density/kg m -3 of 920.
  2. jcsd
  3. Sep 24, 2008 #2
    Re: Physics "pressure/density" question

    You are supposed to show an attempt at a solution first, people will not simply solve the question for you...

    If you are having trouble finding where to start think about the total amount of water being displaced. If it hadn't been displaced what could you have been able to say about the forces acting on it??

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