Plants make energy. some of it they use to perform the necessary functions of living. what do they do with any excess energy?

Apulley with a mechanical advantage of 5 will require you to pull times the amount of rope. a. 1/5 b. 5 c. 10 d. 15

22. the effect of threshold braking is to a cause skids. b. lock wheels. c. prevent locking of wheels. d. increase stopping distance.

Acoil suspended freely, points in some direction when no current is passed through it . can you tell what will happen when a current is passed though it?