Question

an engine has a power of 2KW. Find the energy supplied by the engine working for two hours. (Ans:-1.44x 10*7)

Answer 1

Energy, in physics, the capacity for doing work. It may exist in potential, kinetic, thermal, electrical, chemical, nuclear, or other various forms. There are, moreover, heat and work—i.e., energy in the process of transfer from one body to another.

Answer 2

Power=2KW(P)
Time=2 hrs(t)
Energy supplied by the engine(E)=P*t
=2*2
=4 KWh