A substance decays according to the formula Q = 120(0.5)"48.. (a) What is its half-life? (Do not round off.) The half-life is Number hours

Principles of Physics: A Calculus-Based Text
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Author:Raymond A. Serway, John W. Jewett
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Chapter30: Nuclear Physics
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A substance decays according to the formula Q = 120(0.5)"40.1, where t is in hours.
(a) What is its half-life? (Do not round off.)
The half-life is Number
hours
(b) By what percent does it decay each hour? (Report to 2 decimal places.)
It decays by Number
% per hour
Transcribed Image Text:A substance decays according to the formula Q = 120(0.5)"40.1, where t is in hours. (a) What is its half-life? (Do not round off.) The half-life is Number hours (b) By what percent does it decay each hour? (Report to 2 decimal places.) It decays by Number % per hour
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