A wound spring has potential energy. The spring does not possesses kinetic energy until it is released and it starts to move. Hence energy in the form of potential energy is stored in the spring and when it is unwind it transfers its energy to the moving parts in the form of kinetic energy.

Father of Deepak's daughter's father → Deepak's father.
Hence, the person in the brother of Deepak's father.
Therefore, the person is the uncle of Deepak.

A cyclotron is a particle accelerator. cyclotron is an electrically powered machine which produces a beam of charged particles that can be used for medical, industrial and research processes.