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Homework Help: Air pressure/atmosphere problem

  1. Apr 15, 2013 #1
    1. How high would the atmosphere extend (assume P=0 at the top) if it were uniform density Pair - 1.29 kg/m3 and we assumed the air was incompressible (Patm = 1.013 x 10e5 Pa

    2. maybe roh g h?

    3. I dont have any idea where to start with this. There are a few ideas in there that i just dont know where my teacher is going. This is a test review and we did not have a question quite like this in the homework or notes./b]
  2. jcsd
  3. Apr 15, 2013 #2
    Think about what rho g h equals
  4. Apr 15, 2013 #3
    if P = roh g h
    1.013 x 10e5 pa= 1.29kg/m3 x 9.8m/s2 x h
    h = 8012.97 m?
  5. Apr 15, 2013 #4
    can anyone confirm if i am correct or incorrect on this?
  6. Apr 16, 2013 #5


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    It's correct. You ought also to have been told to assume g is constant to that height.
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