Choose all words below which describes a unit of measure used in the geological time scale

2kg of refrigerant 134a undergoes a polytropic process in a piston-cylinder assembly from an initial state of saturated vapor at 2 bar to a final state of 12 bar, 80 degree c. a)determine the work for the process in kj. b)sketch the process on a p-v diagram.

Abar magnet cut in half will form a total ofpoles. a)fourb)eightc)two

The energy of a photon is equal to (what) times (what) of the photon.