7. A radioactive material has a half-life of 50 years. a. If you start with 1,000 grams of the radioactive material, exactly how long will it take to reduce to 62.5 grams? b. Determine the decay constant k. Leave your answer in terms of a logarithm. 1s the value of the constant k (you found in point b.) positive or negative? 87 87

7. A radioactive material has a half-life of 50 years. a. If you start with 1,000 grams of the radioactive material, exactly how long will it take to reduce to 62.5 grams? b. Determine the decay constant k. Leave your answer in terms of a logarithm. 1s the value of the constant k (you found in point b.) positive or negative? 87 87

Algebra and Trigonometry (MindTap Course List)

4th Edition

ISBN:9781305071742

Author:James Stewart, Lothar Redlin, Saleem Watson

Publisher:James Stewart, Lothar Redlin, Saleem Watson

Chapter4: Exponential And Logarithmic Functions

Section4.CR: Chapter Review

Problem 13CC: Suppose that the initial mass of radioactive substance is m0 and the half-life of the substance is...

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