A sample of radioactive material contains 5.0E+10 unstable nuclei with a decay constant of 1.20E-06 /s. (a) Calculate h

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answerhappygod
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A sample of radioactive material contains 5.0E+10 unstable nuclei with a decay constant of 1.20E-06 /s. (a) Calculate h

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A sample of radioactive material contains 5.0E+10 unstable
nuclei with a decay constant of 1.20E-06 /s.
(a) Calculate how many nuclei remain after 1.4E+06 s.
(b) Determine the activity of the sample after 1.4E+06 s.
Give your answer as a positive value.
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