Which of the following is not related to unbalanced forces? A. Motion
B. Being still
C. Falling over
D. Acceleration
Choose 1

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.

Gordon is going for a run through the park, but it is cold outside. the low outside temperature could affect his personal safety.

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?