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Homework Help: Physics math question

  1. Oct 12, 2004 #1
    Im pretty bad at these physics math problems and our book doesnt go over how to do them very much so I was wondering if I could get some help..

    The problem is The weight of the atmosphere above 1 square meter of the earth's surface is 100 000 newtons. If the density of the atmosphere were a constant 1.2 kg/m(cubed), calculate where the top of the atmosphere would be.

    Okay so we have the weight of the atmosphere as 100,000 newtons, the density is 1.2 kg/m(cubed). We learned that the pressure of the atmosphere is 100,000 newtons per meter squared, or 100 kilo pascals.

    There a special formula in our to calculate how high the atmosphere is based on the density or the pressure?

    thanks very much
     
  2. jcsd
  3. Oct 12, 2004 #2
    basically what you would want to do there, since you already know two of the dimensions of the volume(length=1m and width=1m), is figure out what the 100,000N is in kg and divide that by how many kilos it is per m^3. because you have a 1x1 square, the number of cubic meters will also be the height, because 1x1xY=Y
     
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