An object has a weight W when it is on the surface of a planet
of radius R. What will be
the gravitational force on the object after it has been moved to a
distance of 4R from the
surface of the planet?
(A) 16W
(B) 4W
(C) W/4
(D) W/25
(E) 1/8 W
An object has a weight W when it is on the surface of a planet of...