Mass
Radius
Orbital radius
Orbital period
Moon A
4.0 x 1020kg
unknown
2.0 x 108m
4.0 x 106s
Moon B
1.5 x 1020kg
2.0 x 105m
3.0 x 108m
unknown
Mithra is an unknown planet that has two moons, A and B, in circular orbits around it. The table summarizes the hypothetical data about these moons. What is the mass of Mithra? (G = 6.67 x 10-11N · m2/kg2)
