Which definition of speed (average speed, constant speed, instantaneous speed) did we use in this investigation? why?

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.

True or false graphs must include scales that increase by the same amount

Abody covers a semicircle of radius 7cm in 5s .find its linear speed