Two stars are orbiting each other. This is called a binary star system. Star A has a mass of 7.5 x 10^30 kg and star B has a mass of 5.8 x 10^29 kg. The stars are 7.2 x 10^11 m apart.
(a) Find the radius of star A's orbit.
(b) Find the radius of star B's orbit.
(c) Find the force of gravitational attraction felt by Star A.
(d) Find the force of gravitational attraction felt by Star B.
(e) Find the period of the star A's rotation.