Einstein mass-energy relation

The condition that energy be released follows from the Einstein mass-energy relation ... 

Pair production involves the complete disappearance of the incident photon and the creation of an electron and a positron. It occurs only at incident energies larger than 1.02 MeV since an electron pair has to be created. Using the Einstein mass—energy relation E = me2, in fact, one finds that one electron mass is equivalent to 0.51 MeV. Energy in excess of 1.02 MeV is converted to kinetic energy of the pair. The probability of pair production increases slowly with energy and above 4 MeV it is proportional to log E and Z2. 

The energies of nuclear reactions and radioactive decays can only be considered with the aid of Einstein s equation relating mass and energy ... 

In the special case of a particle at rest p = 0, we obtain Einstein s famous mass-energy equation E = mc. The alternative root E = — mc is now understood to pertain to the corresponding antiparticle. For a particle with zero rest mass, such as the photon, we obtain p = E/c. RecaUing that kv = c, this last four-vector relation is consistent with both the Planck and de Broglie formulas E = hv and p = h/X. 

Einsteins equation that relates mass and energy... 

Einstein s mass-energy equivalence relationship Relation between mass defect and ena-gy released... 

It is now known that energy can be produced by the loss of mass during a nuclear reaction. Energy and mass are related by Einstein s mass-energy equivalence relationship E = mc, where c is the velocity of light. The modified law, therefore, states that the total mass and energy of an isolated system remain constant. 

Under special circumstances, nuclear reactions can occur on the Earth, e.g. nuclear fission of uranium and nuclear fusion of hydrogen in special reactors. Nuclear reactions release vastly greater amounts of energy than chemical reactions. The energy released in a nuclear reaction can be calculated from the difference in the rest mass of the reactants and the products using Einstein s famous relation + rn c, in which p is the momentum, mo the rest... 

The relation between energy and mass is given by the Einstein equation ... 

Einstein showed that mass and energy are equivalent. Energy can be converted into mass, and mass into energy. They are related by Einstein s equation ... 

The energy E locked into the atomic nucleus is related to its mass m and the speed of light c, according to the Einstein equation, E = me2. 

When a nucleus is formed / v / from protons and neutrons, some mass (mass defect) is converted to energy (binding energy), as related by the Einstein equation, AE = A me2. 

---