1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Don't understand

  1. Oct 25, 2005 #1
    Communications satellites must be in geosynchronous orbits. that is, they must remain above a fixed point on Earth's surface, enabling sending and receiving antennas to be aimed at a fixed point overhead. What must be a communication satellite's orbital period (the time for one complete orbit around Earth)?
  2. jcsd
  3. Oct 25, 2005 #2

    Tom Mattson

    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    What have you tried so far?
  4. Oct 25, 2005 #3


    User Avatar
    Science Advisor

    What is the period of the point directly below it on earth?
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook