Question

part a
when an object moves away from the surface of earth, the gravitational force decreases because
view available hint(s)
hint 1.
think of the factors that determine the force of gravity.
its mass decreases
its mass increases
the distance between earth and the object increases
its weight decreases

Explanation:

The gravitational force between two objects is given by Newton's law of universal gravitation $F = G\frac{Mm}{r^{2}}$, where $G$ is the gravitational constant, $M$ is the mass of the Earth, $m$ is the mass of the object, and $r$ is the distance between the centers of the two objects. As an object moves away from the surface of the Earth, $r$ increases, and since $F$ is inversely proportional to $r^{2}$, the gravitational force $F$ decreases. The mass of the object does not change just by moving away from the Earth's surface. Weight is the gravitational force acting on an object, and it decreases because the gravitational force decreases, but the cause is the increase in distance.

Answer:

C. the distance between Earth and the object increases