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The decay constant for the radioactive n...

The decay constant for the radioactive nuclide `64Cu` is `1.516 xx 10^(-5) s^(-1)` . Find the activity of a sample containing `1mug` of `^64Cu`. Atomic weight of copper `= 63.5 g mole^(-1)`. Neglect the mass difference between the given radioisotope and normal coper.

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