What is potential energy?

What should be orientation of a magnetic dipole in a uniform magnetic field so that its potential energy is maximum?

When the height of an object is increased, what happens to its potential energy?

When an air bubble rises in water, what happens to its potential energy?

The electron in given Bohr orbit has a total energy of -3.4 eV.Calculate its potential energy adn

What is the potential energy of an electron present in N- shell of the Be^(3+) ion ?

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

An object of mass 40 kg is raised to a height of 5 m above the ground. What is its potential energy ? If the object is allowed to fall, find its kinetic energy when it is half-way down. Take g = 10 ms ^-2 .

A short bar magnet of magnetic moment m = 0.32 JT^-1 is placed in a uniform magnetic field of 0.15 T. If the bar is free to rotate in the plane of the field, which orientation would correspond to its stable equilibrium?What is the potential energy of the magnet in this case?