Let the force of the moon on the earth be f1. let the force of the earth pulling on the moon be f2. which of the following is greater? f1 ⊝ f2 ⊝ neither f1 nor f2 ⊝ cannot be determined without additional information

A250-n box is at rest on a frictionless horizotal floor. then a person shoves the box with a non-zero force of magnitude p. which statement best describes the relationship betweeen p and the motion of the box after it was shoved? -the box will not move when p< 250n but otherwise will accelerate at a constant rate that is directly proportional to p - the box will begin moving at a speed that is directly proportional to p, then will gradually slow to a halt -the box will move with constant velocity at a speed that is directly proportional to p -box will accelerate across the floor at a constant rate that is directly proportional to p

Heterogeneous mixture with larger particles that never settle is

Efficiency is the ratio of to for a system a)power in to power in b)power in to power out c) power out to power out d) power out to power in