Abowling ball that is standing still on the tablea-line may start to move on its own and then fall offb-has too much inertia to move c- will accelerate on its own if left alone d- will not move unless acted on by another force

I believe the answer is A cause a ball will move because its a smooth surface.

The soviet union beat the us to the first successful launch, with the october 4, 1957, orbiting of sputnik 1, and later beat the us to have the first human in earth orbit, yuri gagarin, on april 12, 1961. the "race" peaked with the july 20, 1969, us landing of the first humans on the moon with apollo 11