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În prealabil postat de iuliu46
Eugen hai sa terminam :
In physics – in particular, special and general relativity – mass–energy equivalence is the concept that the mass of a body is a measure of its energy content. In this concept, mass is a property of all energy; energy is a property of all mass; and the two properties are connected by a constant.
Deci masa unui corp e o masura a energiei continuta in acel corp. De asta cand adaugi energie masa corpului creste.
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Bineinteles ca terminam... in momentul acesta in care faceti distictia intre materie si masa
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