Static electricity is 1. The flow of electrons
2.The build-up of electrons
3.Electrons traveling through conductors
4.Electrons traveling through insulators

If the speed of a particle triples ,by what factor does its kinetic energy increase?

Velocity is a description of both speed and direction, therefore it - a vector - a force arrow - the same as acceleration - a magnitude

If a refrigerator is a heat pump that follows the first law of thermodynamics, how much heat was removed from food inside of the refrigerator if it released 380j of energy to the room?