A 0.145 kg baseball pitched at 39.0 m/s is hit on a horizontal line drive straight back towards the pitcher at 59.0 m/s. If the contact time between bat and ball is 0.001 s, calculate the average force between the ball and
bat contact. (NO Scientific Notation!)

Moon effect. some people believe that the moon controls their activities. if the moon moves from being directly on the opposite side of earth from you to being directly overhead, by what percentage does (a) the moon's gravitational pull on you increase and (b) your weight (as measured on a scale) decrease? assume that the earth–moon (center-to-center) distance is 3.82 × 10^8 m, earth's radius is 6.37 × 10^6 m, moon's mass is 7.36 × 10^22 kg, and earth's mass is 5.98 × 10^24 kg.

The slope of a velocity time graph over any interval of time gives the during that interval

What is the rate of change in a objects position?