1. A newly found planet with a density of 4950 kg/m3 has no atmosphere and is orbited by a low altitude satellite with an orbital speed of 3.55 km/s. What is the mass of the planet? 2. density*velocity=mass G= 6.67E-11 3. After a process of equations, I ended up with mass= sqrt(V^6)/(G^3*density*4/3*pi). Subbing in the values and converting 3.55 km/s to 3550 m/s, I get sqrt(3550^6)/(6.67E-11)^3(4950)(4/3*3.14) to get an answer of 3.3*10^47 kg This isn't the right answer, and I'm not sure where I screwed up. Much appreciated..