Posted by Jay on Monday, June 25, 2012 at 10:03am.
The Moon orbits the Earth at a distance of 3.85 x 108 m. Assume that this distance is between the centers of the Earth and the Moon and that the mass of the Earth is 5.98 x 1024 kg. Find the period for the Moon's motion around the Earth. Express the answer in days. The unit for this is "days"

Physics  bobpursley, Monday, June 25, 2012 at 10:33am
force gravity=force centripetal
GMe*m/r^2=m w^2 r
where w= 2PI/Period
solve for period in seconds, then convert it to days.