Mathematics, 09.01.2020 01:31 markaylarowland8
If 3.0 grams of strontium-90 in a rock sample remained in 1989, approximately how many grams of strontium-90 were present in the original rock sample in 1933?
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If 3.0 grams of strontium-90 in a rock sample remained in 1989, approximately how many grams of stro...
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