Answer:
The strength of the gravitational force between two objects depends on two factors, mass and distance. the force of gravity the masses exert on each other. ... increases, the force of gravity decreases. If the distance is doubled, the force of gravity is one-fourth as strong as before.
Explanation:
Work cannot be increased by using a machine of some kind.
Density is defined as [mass] / [volume] .
The only choice listed with those physical dimensions is 'd' .
Answer is 4,400,000 kg • m/s
