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Block is lowered into water, what is weight of water spilled?

  1. Jul 13, 2009 #1
    1. The problem statement, all variables and given/known data

    A 400 cm^3 block of aluminum (D=2.7 g/cm^3) is lowered into a completely full beaker of water. What is weight of water that spills out of the beaker? Correct answer is 4N.

    2. Relevant equations

    D=m/v



    3. The attempt at a solution

    I figured out the volume of the block which will equal to the amount of water displaced...and I did not get 4N.
     
  2. jcsd
  3. Jul 13, 2009 #2

    negitron

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    Science Advisor

    What did you get?
     
  4. Jul 13, 2009 #3
    I got 10.8 N

    I figured out the mass (not volume as previously stated) and used w=mg
     
  5. Jul 13, 2009 #4

    rl.bhat

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    Homework Helper

     
  6. Jul 13, 2009 #5
    thanks, that helped. my brain just isn't working today.
     
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