Scientists want to place a 3800.0 kg satellite in orbit around Mars. They plan to have the satellite orbit a distance equal to 2.0 times the radius of Mars above the surface of the planet. Here is some information that will help solve this problem:
mmars = 6.4191 x 1023 kg
rmars = 3.397 x 106 m
G = 6.67428 x 10-11 N-m2/kg2
a) What speed should the satellite have to be in a perfectly circular orbit?
b) How much time does it take the satellite to complete one revolution?