A certain radioactive nuclide has a half-life of 200.0 s. A sample containing just this one radioactive

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A certain radioactive nuclide has a half-life of 200.0 s. A sample containing just this one radioactive nuclide has an initial activity of 80,000.0 s−1.
(a) What is the activity 600.0 s later?
(b) How many nuclei were there initially?
(c) What is the probability per second that any one of the nuclei decays?
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Physics

ISBN: 978-0077339685

2nd edition

Authors: Alan Giambattista, Betty Richardson, Robert Richardson

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