Why is moving a box with a mass of 37 kilograms a distance of 37 meters why it did 360 joules of work in two minutes when moving the box what was his power output?
a) 9.72w
b) 3w
c) 180w
d) 323w

Is it possible to use the energy from two atoms colliding to create a clean burning lasting fuel source with a large amount of force? is it also possible to harness that energy from the two atoms colliding to create a clean energy source that will last for years from just two atoms colliding. is there a possibility to control and store that energy for years but slowly let the energy out enough to power cities cheaper and faster.

Consider a system to be two train cars traveling toward each other. what is the total momentum of the system before the train cars collide?   kg • what must the total momentum of the system be after the train cars collide?   kg •  

Using the free-body diagram, calculate the net force acting on the sled. is the sled in a state of dynamic equilibrium?