Which of these is correct about the moon's motion around the earth? A) The moon exerts no gravitational force on the earth.
B) Centrifugal force acting on the moon balances the force of the earth's gravity.
C) There is no gravity acting on the moon because it is in orbit.
D) The moon is in free fall.

A100 kg running back runs at 5m/s into a stationary linebacker. it takes 0.5 for the running back to be completely stopped

Why are graphs useful when interpreting data

Balloon a has charge q, and identical mass balloon b has charge 10q. you hang them from threads near each other. choose all of the statements with which you agree. check all that apply. a. a and b exert the same magnitude forces on each other. b. the force that a exerts on b is 10 times the force that b exerts on a. c. the angle between the thread supporting a and the vertical is < the angle between the thread supporting b and the vertical. d. the force that a exerts on b is 1/10 the force that b exerts on a.