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OpenStudy (tester97):
Based on the information obtained from your calculations, how much Uranium-235 would be left if the fossil were approximately 700 million years old? approximately 0 mg approximately 20 mg approximately 40 mg approximately 60 mg
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OpenStudy (anonymous):
40 mg i think
OpenStudy (tester97):
how did you get that?
OpenStudy (anonymous):
gooogle lol
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