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Mass of Earth Period

  1. Sep 25, 2012 #1
    1. The problem statement, all variables and given/known data

    If you suddenly multiplied the mass of Earth by a factor of 4, how would the period of a satellite change, if the radius of its orbit did not change?

    4 times as long

    1/4 as long

    2 times as long

    1/2 as long

    Unchanged


    2. Relevant equations



    3. The attempt at a solution

    I am not sure what equation to use...
     
  2. jcsd
  3. Sep 25, 2012 #2

    Simon Bridge

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    Use Newtons Law of Gravity.
     
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