A 60 kg runner accelerates during a race at 3m/s2. what force is exerted on the earth with each step

How much work would be needed to raise the payload from the surface of the moon (i. e., x = r) to an altitude of 5r miles above the surface of the moon (i. e., x = 6r)?

Excuse ! extra points plus ! super desperate ! the position of an object does not move relative to a reference point. relative to the reference point the object _. a.) is not moving. b.) is moving.

In positive numbers less than 1, the zeros between the decimal point and a non-zero number are blank significant