Energy in Special Relativity

Presented in this paper the new relativistic formulas for kinetic, rest and total energies differ from the commonly applied analogous expressions. The new relativistic kinetic energy and its relation with the spatial part of the four-momentum are given by the expressions similar to its classical equivalents. In particular, I justified that the rest energy is half of the amount determined by the traditional relation. The most popular formula of physics (mass-energy equivalence principle) is not correct.