einstein's mass-energy law

E e

Definition of einstein's mass-energy law words

noun einstein's mass-energy law the principle that mass (m) and energy (E) are equivalent according to the equation E = mc2, where c is the velocity of light 0

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A common word. It’s meaning is known to most children of preschool age. About 85% of English native speakers know the meaning and use the word.

Most Europeans know this English word. The frequency of it’s usage is somewhere between "mom" and "screwdriver".

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