Imagine that you have a bicycle wheel that you start spinning. Then you place your hand on the wheel to stop it.
1. What kind of energy does the wheel have once it is stopped? *
2. What kind of energy does the wheel have while it is spinning? *

Mutt and jeff are running along a path each pushing a cart loaded with rocks. if mutt's wagon has a mass two times greater than jeff's and they want to stay together, arriving at their destination at the same time, what must happen? a) jeff should slow down so mutt can catch up. b) mutt must use half as much force to push his cart. c) mutt must use twice as much force to push his cart. d) mutt and jeff will use the same force, but mutt will take bigger steps.

How to tell if a molecule is polar or nonpolar with electronegativity

Aforce of 100 newtons is used to move an object a distance of 15 meters with a power of 50 watts. find the work dine and the time it takes to do the work