On Energy and Momentum in Contemporary Physics

This paper analyzes the quantities of energy and momentum in the definitional relationship of classical mechanics and relativistic mechanics, in the de Broglie momentum hypothesis and in the Klein-Gordon, Dirac and Schrodinger equation. The results of analysis shows that $\lambda $ designated in the de Broglie hypothesis $\lambda =h/mv$ as the wave of matter with rest state value $\lambda =\infty $ must be connected with a real dimension of a particle with rest state value $\lambda =l_{o} =h/m_{o} c$ and that on this basis we can come to the fundamental equations of quantum mechanics that are the Klein-Gordon, Dirac and Schrodinger equation without the necessity of the wave functions. Energies in relativistic mechanics as $mc^{2}$,$mvc$, and $m_{o} c^{2}$, and energy of a photon $h\nu $ do not represent quantities of energies, but quantity of momentums intentionally multiplied by $c$, so $mc\cdot c$, $mv\cdot c$, $m_{o} c\cdot c$, $h\nu /c\cdot c$ and merely the dimension of such quantities equals in dimension the quantity of energy.