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Beginning physics check

  1. Sep 13, 2009 #1
    1. The problem statement, all variables and given/known data
    Antartica is roughly semicircular, with a radius of 2000km. The average thickness of its ice cover is 300m. How many cubic centimeters of ice does Antartica contain? Assume we ignore the curvature of Earth.

    2. Relevant equations

    (4/3 Pi r^3h)/2

    3. The attempt at a solution

    I plugged r=2.0x10^8 and 3.0x10^5 and wound up with the answer 5.0 x 10^30

    I jsut want to check if this is right. I jsut started my Physics course a couple days ago.
  2. jcsd
  3. Sep 13, 2009 #2


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    Homework Helper

    The relevant equation is wrong.
    Area of the circle is π*R^2
    Area of the semicircle is ...?
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