Mathematics, 17.09.2019 20:30 aurikmah2005
The half-life of radioactive strontium-90 is approximately 28 years. in 1960, radioactive strontium-90 was released into the atmosphere during testing of nuclear weapons, and was absorbed into people's bones. how many years does it take until only 15 percent of the original amount absorbed remains?
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The half-life of radioactive strontium-90 is approximately 28 years. in 1960, radioactive strontium-...
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