A sample contains radioactive atoms of two types a and b
A sample contains radioactive atoms of two types, A and B. Initially there are three times as many A atoms as there are B atoms. Two hours later, the numbers of the two atoms are equal. The half-life of A is 0.72 hours. What is the half-life of B?
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a sample contains radioactive atoms of two types a and b initially there are three times as many a atoms as there are b
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