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A laboratory investigation shows that a sample of uranium ore contains 5.48 mg of 23892U and...

A laboratory investigation shows that a sample of uranium ore contains 5.48 mg of 23892U and 2.59 mg of 20682Pb. Calculate the age (in y) of the ore. (The half-life of 23892U is 4.47 ✕ 109 y. The mass of a 23892U atom is 238.050783 amu, and the mass of a 20682Pb atom is 205.974449 amu.)

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