Scientists want to place a 3800 kg satellite in orbit around Mars. They plan to have…

Scientists want to place a 3800 kg satellite in orbit around
Mars. They plan to have the satellite orbit at a speed of 2467 m/s
in a perfectly circular orbit. Here is some information that may
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
1. What radius should the satellite move at in its orbit?
(Measured frrom the center of Mars.)
2. What is the force of attraction between Mars and the
satellite?
3. What is the acceleration of the satellite in orbit?
4. What should the speed of the orbit be, if we want the
satellite to take 8 times longer to complete one full revolution of
its orbit?