The Moon orbits Earth in a nearly circular orbit that lasts 27.32 days. Determine the distance from the surface of the Moon to the surface of Earth.

Answer 1

Physics busy work, I haven't seen that in years.

a. find orbit distance r, center to center.
b. subtract re, and rm

a. forcegravity=centripetal force
GMeMm/r^2=Mm*w^2 r
but w=2PIr/period
manipulate that around until you get r as a function of period. change period to seconds.
insert G, Me and you have r.
b. subtract re+rm