What does E=mc^2 mean? 

1 Answer | Add Yours

gsenviro's profile pic

gsenviro | College Teacher | (Level 1) Educator Emeritus

Posted on

`E = mc^2` 

This is the famous energy-mass relationship equation proposed by Albert Einstein. Here, E is the energy of a body, m is its mass and c is the speed of light in vacuum. This relationship gives us the equivalence of mass and energy, i.e., mass and energy are interchangeable. In other words, given the mass of a body or physical system, we can determine the energy contained in the system. A useful application of this energy-mass equivalence is in the field of nuclear energy, where this equation can be used to determine the binding energy of the sub-atomic particles and thus the energy that can be liberated by the process of nuclear reactions (such as nuclear fission used in energy generation or nuclear weapons).

Hope this helps. 

We’ve answered 319,647 questions. We can answer yours, too.

Ask a question