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are the rest right?

1.A 25.0 kg object is attracted towards the Earth by a force of gravity of 75.0 N. How far from the Earth's centre is it? my answer: g=Fg/m g=75N/25kg g=3 N/kg 2. A 250 kg freezer is being pushed across the floor at a constant speed by a force of 750N. What is the coefficient of...

thank you soooooo much,

ok, so its g=50.4N/13.7kg =3.69m/s^2

so, g=Fg/m which would be g=13.7kg/50.4N =0.27m/s^2??

ok, one more problem, m=mass Fg=force of gravity g=accel due to gravity, that's what i understand them to mean, and i don't know what to do with the mass's, I am very very new at this stuff

ok, the formulas i know are: Fg=mg, Fg=G (m1 m2 / R squared),

finding acceleration due to gravity ok, i have no clue on what to do. Question: If a 13.7kg mass weighs 50.4N on the surface of ganymede. what is the acceleration due to gravity on ganymede? that's all the information that was in the question, I am really confused on how to do this question...