Is the amount of mass in a given volume.

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.

We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?

Photons with the highest energy have the longest period