Two stars of masses M and 2M are separated by a distance d. A spaceship travels between the two stars. Closer to the larger star C. It depends on the...

Two stars of masses M and 2M are separated by a distance d. A spaceship travels between the two stars. B. Closer to the larger star C. It depends on the mass of the spaceship. A communications satellite orbits at 400 km above the surface of the Earth. What is its period?