A Satellite in Orbit Around the Earth Has a Period

Multiple Choice

A satellite in orbit around the earth has a period of one hour. An identical satellite is placed in an orbit having a radius that is nine times larger than that of the first satellite. What is the period of the second satellite?

A) 0.04 h
B) 3 h
C) 4 h
D) 9 h
E) 27 h