Air in a bicycle pump is forced through a Valve at Constant pressure P. In One strooked of the pump the volume of air in the pump chamber is reduced from V1 to V2. What is the work done on this air in one stroke of the pump?

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.

Orange juice has a lower or higher viscosity than chocolate syrup

How are the crust and the inner core alike? a) they are both solid. b) they both have the same temperature. c) they are both under the same pressure. d) they are both very close to the center of the earth.