A certain radioactive substance has a half-life of 38 hours. Find how long it takes for 90% of the radioactivity to be dissipated. ANSWER: 126 h
A certain radioactive substance has a half-life of 38 hours. Find how long it takes for 90% of the radioactivity to be dissipated. ANSWER: 126 h
Chapter5: Exponential And Logarithmic Functions
Section: Chapter Questions
Problem 28T: The half-life of radioactive actinium ( 227AC ) is 21.77 years. What percent of a present amount of...
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