Energy, Rest Mass, 3-momentum, and 3-speed From 4-momentum
The 4-momentum of a particle is
where is the particle rest mass, is the momentum in 3-space, and
is the energy of the particle.
Read more about this topic: Lorentz Scalar
Famous quotes containing the word rest:
““I wanted there should be some there next year.”
“Of course you did. You left the rest for seed,
And for the backwoods woodchuck. You’re the girl!
A Ram’s Horn orchid seedpod for a woodchuck
Sounds something like. Better than farmer’s beans
To a discriminating appetite....””
—Robert Frost (1874–1963)