Calculate the velocity of a satellite moving in a stable circular orbit around the earth at a height of 4000 km

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.

4. if you were an astronaut on the moon, what would you experience? what would you see from your perspective?

Ascientific blank must be testable and capable of being proven false?