Mathematics, 01.08.2019 07:00 dontcareanyonemo
Suppose you find a rock and measure that 12.5% of the original uranium-235 still remains it, while the other 87.5% has decayed into lead-207. about how old is the rock?
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Suppose you find a rock and measure that 12.5% of the original uranium-235 still remains it, while t...
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