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TAKE THE QUIZ“Planck's”
We have one entry that includes the term Planck's.
Planck's constant
noun: a constant that gives the unvarying ratio of the energy of a quantum of radiation to its frequency and that has an exact value of 6.62607015 × 10−34 joule seconds —symbol h
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- Before we went to her house, Hannah told us her aunt was a flibbertigibbet.
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Merriam-Webster unabridged
