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Mathematics, 04.08.2019 09:30 jasminecoronetti44
Cobalt 60 has a half-life of about 5 years. how many grams of 300 g sample will remain after 20 years? 1. 0.0625 g 2. 9.375 g 3. 18.75 g 4. 37.5 g
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Cobalt 60 has a half-life of about 5 years. how many grams of 300 g sample will remain after 20 year...
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