A communications satellite with a mass of 375 kg is in a circular orbit about the Earth. The radius of the orbit is 25,500 km as measured from the center of the Earth. (a) Calculate the weight of the satellite on the surface of the Earth. Calculate the gravitational force exerted on the satellite by the Earth when it is in orbit.

Why does the equilibrium position of the spring change when a mass is added to the spring? will the mass oscillate around the new equilibrium position of the spring or the previous position without a mass attached to the spring? if the equilibrium position of the spring changes by 20 cm (assuming no initial mass) when a mass is added to the spring with constant 4.9 kg/s^2, what is the mass of the object attached to the spring?