principle of equivalence

Definition of principle of equivalence

: a principle in the general theory of relativity: the mass of a body as measured by its resistance to acceleration under the action of a force is equal to the mass as measured by the effect of a gravitational field on the body

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“Principle of equivalence.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/principle%20of%20equivalence. Accessed 14 Aug. 2020.

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