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Author Question: Homer says that we can safely use nuclear power because all radioactive nuclei are gone after two ... (Read 82 times)

renzo156

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on: Aug 10, 2020
Homer says that we can safely use nuclear power because all radioactive nuclei are gone after two half-lives. Marge says that only the decay rate is zero after two half-lives. Which one, if either, is correct, and why?

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Homer, because half of the nuclei disintegrate in each half-life.

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Marge, because the number of decays per unit time is halved in each half-life.

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Homer, because it's safe to handle radioactive substances after two half-lives.

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Both, because when all nuclei disintegrate the decay rate is also zero.

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Neither, because one quarter of the nuclei are left after two half-lives.
Physics for Scientists and Engineers ¦ Serway, Jewett ¦ 9th Edition
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Marked as best answer by renzo156 on Aug 10, 2020

xiazhe

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Reply #1 on: Aug 10, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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renzo156

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Reply 2 on: Aug 10, 2020
Thanks for the timely response, appreciate it

Liddy

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Reply 3 on: Yesterday
Excellent

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