The unit of potential energy is

The unit of potential is:

If in a wier of Young's modulus Y, longitudinal strain X is produced, then the value of potential energy stored in its unit volume will be

The magnitude of potential energy per unit mass of the object at the surface of earth is E . Then escape velocity of the object is

The magnitude of potential energy per unit mass of the object at the surface of earth is E . Then escape velocity of the object is

The magnitude of potential energy per unit mass of the object at the surface of earth is E . Then escape velocity of the object is

The magnitude of potential energy per unit mass of the object at the surface of earth is .E.. Then escape velocity of the object is

If a proton moves through a potential difference of 4.5 kV,what is the magnitude of the change in the proton's potential energy expressed in the unit electron-volt ?