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[" A sample of radioactive material deca...

[" A sample of radioactive material decays simule "],[" by two processes "A" and "B" with half-lives "(1)/(2)" and "],[" respectively.For the first half hour it decess "(1)/(2)" wis "],[" process "A" ,next one hour with the process "B" ,and firth."],[" half an hour with both "A" and "B" .If,originally,themen "],[" nuclei,find the number of nuclei after "2" hof sumber "]

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