If you measured the orbital period of the Moon and the distance between Earth and the Moon, then you could calculate
A) the mass of the Moon.
B) the sum of the masses of Earth and the Moon.
C) the average distance between Earth and the Sun.
D) the radius of Earth.
E) the radius of the Moon.

Question

Quizplus · Accepted Answer

Using Kepler's third law and Newton's law of gravitation, the orbital period and distance can be used to calculate the sum of the masses of the two bodies involved, in this case, Earth and the Moon.

If You Measured the Orbital Period of the Moon and the Distance