Energy gives rise to weight when it is trapped in a system with zero momentum, where it can be weighed. It is also equivalent to mass, and this mass is always associated with it. Mass is also equivalent to a certain amount of energy, and likewise always appears associated with it, as described in mass-energy equivalence. The formula E = mc², derived by Albert Einstein (1905) quantifies the relationship between rest-mass and rest-energy within the concept of special relativity. In different theoretical frameworks, similar formulas were derived by J. J. Thomson (1881), Henri Poincaré (1900), Friedrich Hasenöhrl (1904) and others (see Mass-energy equivalence#History for further information).
Energy gives rise to weight when it is trapped in a system with zero momentum , where it can be weighed . It is also equivalent to mass , and this mass is always associated with it . Mass is also equivalent to a certain amount of energy , and likewise always appears associated with it , as described in mass - energy equivalence . The formula E = mc² , derived by Albert Einstein ( 1905 ) quantifies the relationship between rest - mass and rest - energy within the concept of special relativity . In different theoretical frameworks , similar formulas were derived by J. J. Thomson ( 1881 ) , Henri Poincaré ( 1900 ) , Friedrich Hasenöhrl ( 1904 ) and others ( see Mass - energy equivalence#History for further information ) .
What quantifies the relationship between rest-mass and rest-energy within the concept of special relativity?
What quantifies the relationship between rest - mass and rest - energy within the concept of special relativity ?
E = mc²
E = mc²