Satellite Motion:?MassRadiusOrbital radiusOrbital periodMoon A4.0 × 1020 kgunknown2.0 × 108 m4.0 × 106 sMoon B1.5 × 1020 kg2.0 × 105 m3.0 × 108 munknownMithra 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 × 10-11 N ? m2/kg2)
A. 1 × 1022 kg
B. 3 × 1022 kg
C. 1 × 1023 kg
D. 3 × 1023 kg
E. 1 × 1024 kg
Answer: D
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