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Homework Help: Period of a satellite!

  1. Nov 16, 2004 #1
    What is the period of a satellite circling the Moon at a height of 90km above the Moon's surface?

    Can someone get me started please?
  2. jcsd
  3. Nov 16, 2004 #2
  4. Nov 16, 2004 #3
    wow thanx, i missed that thread XD
  5. Nov 16, 2004 #4
    i had most of it but was forgetting to add the R of the moon to the distance of the sat above the moon >.<.
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