When climbing from the outer edge of a rotating space station toward the center,  halfway point toward the center, the weight of the person is _____ what it was at the outer edge.

A space probe is launched from Earth headed for deep space. At a distance of 10,000 miles from Earth's center, the gravitational force on it is 837 lb. What is the size of the force when it is at each of the following distances from Earth's center? (a) (b) 20,000 miles lb 30,000 miles lb (c) 100,000 miles Ib

A 20 kg sphere is at the origin and a 10 kg sphere is at (x, y) = (20 cm, 0 cm). At what point or points could you place a small mass such that the net gravitational force on it due to the spheres is zero?

Three uniform spheres of masses m₁ = 2.50 kg, m₂ = 4.00 kg, and m3 = 5.50 kg are placed at the corners of a right triangle (see figure below). Calculate the resultant gravitational force on the object of mass m₂, assuming the spheres are isolated from the rest of the Universe. 10-11 N (0, 3.00) m (-4.00, 0) m M₂ 0 m₁ F12 m₂