Explain from where does the energy to run a car come.

Where does the energy of a capacitor reside ?

Consider an amplifier circuit using a transistor.The output power is several times greater than the input power.Where does the extra power come from?

Consider an amplifier circuit using a transistor.The output power is several times greater than the input power.Where does the extra power come from?

When an arrow is shot from a bow, it has kinetic energy in it. Explain briefly from where does it get its kinetic energy.

When you push your bicycle up on an incline the potential energy of the bicycle and yourself increses. Where does this energy come from?

Does the transfer of energy take place when you push a huge rock with all your might and fail to move it ? Where is the energy you spend going ?

The energy required to accelerate a car from 10 m/s to 20 m / s is how many times the energy required to accelerate the car from rest to 10 m /s