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- E = mc2, equation in German-born physicist Albert Einstein ’s theory of special relativity that expresses the fact that mass and energy are the same physical entity and can be changed into each other.
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What is MC2 in special relativity?
E = mc 2 —In SI units, the energy E is measured in Joules, the mass m is measured in kilograms, and the speed of light is measured in metres per second. An object moves at different speeds in different frames of reference, depending on the motion of the observer.
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May 6, 2024 · E = mc 2, equation in German-born physicist Albert Einstein’s theory of special relativity that expresses the fact that mass and energy are the same physical entity and can be changed into each other. In the equation, the increased relativistic mass (m) of a body times the speed of light squared (c 2) is equal to the kinetic energy (E) of ...
May 7, 2024 · To understand E=mc², you have to define each of the variables. E is the energy of an object at rest, m is that object’s mass, and c is the speed of light in a vacuum. Neither the energy nor the mass of an object can change, although the mass can change forms, such as when an ice cube melts.
- 1.2M
Einstein's equation shows that mass and energy are equivalent—so long as you multiply by the "conversion factor" of c 2 (the speed of light multiplied by itself). This factor is huge: 90 billion kilometers 2 per second 2.
Albert Einstein (14 March 1879 – 18 April 1955) was a German-born American Jewish scientist. [5] . He worked on theoretical physics. [6] . He developed the theory of relativity. [4] [7] He won the Nobel Prize in Physics in 1921 for theoretical physics.
