The meaning of E=mc²
The most famous equation may not be what you think it is. For example, it’s not about converting mass into energy. And, it’s only a part of the whole thing.
energy
Simple problems on relativistic energy and momentum
We will focus on a few simple problems where we will manipulate Einstein’s equations for relativistic energy and momentum.
Energy is neither fundamental nor conserved
Sometimes you may have heard someone say that, ‘in the end, everything is energy. Einstein himself said that mass equals energy, we are energy ourselves, light is energy, and everything in this universe is energy.’ Often, it is represented as the fundamental substance everything is made out of. And energy is conserved. Both statements are incorrect.
Simple problems on relativistic energy and momentum
We will focus on a couple of simple problems where we will manipulate the equations for relativistic energy en momentum.