A banana contains about 430mg of potassium of which 00117, Physics

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A banana contains about 430mg of potassium of which 00117

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Question: A banana contains about 430mg of potassium, of which 0.0117% is the radioactive isotope 4019K. The atomic mass of potassium averaged over isotopes is39.0983 u. Estimate the activity of an average banana due to 40/19K. Half-life of 40/19K is 1.277 x 10⁹ yr.

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Physics: A banana contains about 430mg of potassium of which 00117

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Physics: A banana contains about 430mg of potassium of which 00117

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