Thanks, that did help a lot.
It seems like the method I was trying to work through would also work but is much longer.
It also doesn't help that when I do the calculation with either method I still do not get a value the exactly matches one of the answer choices, but is very close to answer A...
Homework Statement
Two satellites are in circular orbits around Jupiter. One, with orbital radius r, makes one revolution every 16 h. The other satellite has orbital radius 4.0r. How long does the second satellite take to make one revolution around Jupiter?
A. 130 hours
B. 120 h
C. 140 h
D...