Posted by jake on Sunday, March 7, 2010 at 11:35pm.
(a) Set the centripetal force equal to the gravity force on the satellite, and solve for R, the distance from the center of the earth.
G*M*m/R^2 = m V^2/R
M is the mass of the Earth and G is the universal constant of gravity. The satellite mass m cancels out.
Once you have R, subtract the Earth's radius (Re) from that to get the altitude. You will need the speed V of the satellite. Express V in terms of the orbit radius (R) and the period (6.01 hours). Make sure the period is in seconds.
(b) The acceleration is V^2/R. Use the R and V that you get from part (a)
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