Only particles moving at the speed of light are massless. The rest energy, E = mc2, for particles moving at the speed of light is zero because m = 0.
True or false for an electron?
Its rest energy is zero.
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Quantum Mechanics concept. You can view video lessons to learn Quantum Mechanics. Or if you need more Quantum Mechanics practice, you can also practice Quantum Mechanics practice problems.