magician13134
New Member
I have a test tomorrow, my teacher won't be there, so I can't go in early, but I cannot get this problem to work. If anyone can help, I'd appreciate it greatly:
On average, the Earth and Moon have their centers 3.84E5km away. What is the mass of the Moon if the force of gravity between them is 1.99E20N?
Earth's mass = 5.97E24kg
Earth's radius = 6.37E6m
Answer: 7.35E22kg
The formulas are:
F = G (M1M2)/d^2
g = G(m/d^2)
Any ideas? Thanks
On average, the Earth and Moon have their centers 3.84E5km away. What is the mass of the Moon if the force of gravity between them is 1.99E20N?
Earth's mass = 5.97E24kg
Earth's radius = 6.37E6m
Answer: 7.35E22kg
The formulas are:
F = G (M1M2)/d^2
g = G(m/d^2)
Any ideas? Thanks