Question

A moon orbiting a planet in the solar system has an orbital period of 5.0 x 104 s, and the distance between the center of the moon and the planet is 2.0 x 108 m

Answer 1

So where is the question?

Answer 2

One general formula for orbital period is as follows:\[T=2\pi \sqrt{\frac{ r ^{3} }{ GM }}\]where T is the period; r is the distance from the center of the planet to the center of the moon; G is the gravitational constant; and M is the mass of the planet.

Answer 3

Since you're question is lacking further details, it's difficult to see what help you need.