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Homework Help: Geosynchronous satellites

  1. Mar 3, 2008 #1

    bfr

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

    Using a development similar to Kepler's law of periods for planets orbiting the Sun, find the required altitude of geosynchronous satellites above the earth.

    2. Relevant equations

    (R^3)/T^2=(G*M)/(4pi^2)

    3. The attempt at a solution

    I'm honestly not even sure where to start. The correct answer is supposed to be 3.59*10^7m above the surface.
     
  2. jcsd
  3. Mar 3, 2008 #2

    Kurdt

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    Staff Emeritus
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    Gold Member

    Well you know the period and you want to find the radius. Just rearrange the equation and plug the numbers in.
     
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