Mathematics, 12.12.2020 16:40 beelcypher

the half life of potassium-40 (k-40) is 1.25 billion years. if you begin with 130 g of k-40 how much remains after 2.5 billion years?

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the half life of potassium-40 (k-40) is 1.25 billion years. if you begin with 130 g of k-40 how much...

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