If I double the amount I stretch a spring, what happens to its EPE A. Doubles
B. Halves
C. Quadruples
D. Quarters

Aquarterback pedals 3.3meters southward and then run 5.7meters northward. whats the distance ? and whats the displacement?

In a system, when potential energy decreases, then entropy also decreases. true false

Imagine that someone pushes one marble toward a motionless marble. would there still be action-reaction forces involved in the collision? how might the marbles’ motions be changed? ?