At any given time a piece of radioactive material \( \left(\mathrm{t}_{1 / 2}=30\right. \) days)...

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At any given time a piece of radioactive material \( \left(\mathrm{t}_{1 / 2}=30\right. \) days) contains \( 2.592 \times 10^{12} \) atoms. Calculate the activity of the sample in dps.
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