Why do molecules posses potential energy?

What is elastic potential energy?

If the inter - molicule potential energy is minimum at separation R0 what prevents the molecules ofa a substance from collasping to the condensed state ?

Distinguish between electric potential and potential energy.

Prove that potential energy = mgh.

What will be the potential energy of a body when its mass becomes doubled.

Calculate the potential energy in a spring.

Deduce the expression for potential energy of a system of charges?

Derive an expression for potential energy of a stretched elastic spring.