Two radioactive nuclei a and b are present in equal numbers
Two radioactive nuclei A and B are present in equal numbers to begin with. Three days later, there are 2.99 times as many A nuclei as there are B nuclei. The half-life of species B is 2.11 days discover the half-life of species A (in days).
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two radioactive nuclei a and b are present in equal numbers to begin with three days later there are 299 times as many
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