1) A satellite of Mars, called Phobos, has an orbital radius of 9.4 106 m and a period of 2.8 104 s. Assuming the orbit is circular, determine the mass of Mars kg?
2) A satellite has a mass of 110 kg and is located at 1.96 106 m above the surface of Earth.
(a) What is the potential energy associated with the satellite at this location?
J
(b) What is the magnitude of the gravitational force on the satellite?
N