The half-life of potassium-40 is 1.3 billion years. If a rock sample contains 0.010 percent of this

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The half-life of potassium-40 is 1.3 billion years. If a rock sample contains 0.010 percent of this radionuclide today, what was its percentage in the rock 3.9 billion years ago?

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The Physical Universe

ISBN: 978-0077862619

16th edition

Authors: Konrad B Krauskopf, Arthur Beiser

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Question Posted: Mar 12, 2020 05:43 AM

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The half-life of potassium-40 is 1.3 billion years. If a rock sample contains 0.010 percent of this

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The Physical Universe

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