Physics
posted by MB .
A 360kg satellite is in orbit around the Earth 10000 km above the Earth's surface.
(a) What is the weight of the satellite when in orbit? [Answer is in N]
(b) What was its weight when it was on the Earth's surface, before being launched? [Answer is in N]
(c) While it orbits the Earth, what force does the satellite exert on the Earth?
magnitude [Answer is in N]

When in orbit, an object is weightless.
weight on Earth: 360*9.8
Force: G Me*360/(re+1E7m)^2
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