What is potential energy ? State its unit.

Kinetic energy of a particle on the surface is E_(0) and potential energy is -E_(0)/(2) . (a) Will the particle escape to infinity ? (b) At some height its kinetic energy becomes 0.6 E_(0) . What is potential energy at this height ? (c) If the particle escape to infinity , what is kinetic energy of the particle at infinity ?

A box of books weighing 80 kg is on a table 75 cm high. What is its potential energy relative to the floor?

The total energy of an electron in the first excited state of hydrogen atom is -3.4 eV. (a) What is kinetic energy of electron in this state? (ii) What is potential energy of electron in this state? (c) Which of the answers above would change if the choice of zero of potential energy is changed?

Give one example of a body that has potential energy, due to its elongated stretched state.

The ground state energy of hydrogen atom is -13.6 eV . What is the potential energy of the electron in this state

The total energy of an electron in the first excited state of the hydrogen atom is about -3.4 eV. What is the potential energy of the electron in this state ?

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

(a) What do you understand by the term potential energy ? (b) State two factors which determine potential energy of a body. (c) Give four examples of potential energy.

A particle executes shm of amplitude 'a'. (i) At what distance from the mean position is its kinetic energy equal to its potential energy? (ii) At what points is its speed half the maximum speed ?

A particle executing SHM with an amplitude A. The displacement of the particle when its potential energy is half of its total energy is