Recent content by squirmle

Preferably from someone who is experienced, qualified and knows what they are talking about. If you've just heard it as a 'rumor' and have no hard evidence then please don't answer. So, does it? Yes/No? Why? and if not, then how come most bodybuilders are short? (below 5'10)? I'm sick of hearing...

The question goes like this: Phobos is one of the moons of Mars. It orbits around Mars at a mean radius of 9.38x10^6m with a period of 2.76x10^4s. From this information, calculate the mass of Mars. Would really appreciate it if you could guide me through this question step by step, explaining...