# Kinetic energy of nuclei

How do you define (by all means) the kinetic energy of a nuclei (let's say of proton)?

What are the factors, equations, and other things involved?

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mathman
Kinetic energy is defined by mass and speed, no matter what the particle is.

ok....

Meir Achuz
For given momentum p, $$KE=\sqrt{p^2+m^2}-m$$.