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The activity of a sample drops by a factor of 6.0 in 9.4 minutes. What is its half-life?

Source: Giancoli, Douglas C., Physics: Principles with Applications, 7th Edition, 2014.

Quick Answer: 

$3.6 \textrm{ min}$

Giancoli 7th Edition, Chapter 30, Problem 50


Chapter 30, Problem 50 is solved.

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