Which of the following exerts gravity? A.
only objects on Earth
B.
only the Earth
C.
any object with mass
D.
only planets, moons, and stars

Acup of coffee sits on the dashboard of an automobile. the car goes around a sharp curve. even though you hold the cup still, coffee still splashes out. this can best be explained due to a) density. b) friction. c) gravity. d) inertia.

Anybody wanna ? (picture included? )

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?