Calculate the force of gravity on the 0.60-kg mass if it were 1.3×107m above earth's surface (that is, if it were three earth radii from earth's center).

The force of gravity between two objects is given by:

where
G is the gravitational constant
m1 and m2 are the masses of the two objects
r is their separation

In this problem, the mass of the object is , while the Earth's mass is . Their separation is , therefore the gravitational force exerted on the object is

Answer ( slope);