This exercise uses the radioactive decay model. The half-life of radium-226 is 1600 years. Suppose we have a 29-mg sample. (a) Find a function m(t) = mo2-t/h that models the mass remaining after t years. m(t) = 29 2 (b) Find a function m(t) = moe-rt that models the mass remaining after t years. (Round your r value to six decimal places m(t) = (c) How much of the sample will remain after 5000 years? (Round your answer to one decimal place.) X mg (d) After how many years will only 17 mg of the sample remain? (Round your answer to one decimal place.) X yr

This exercise uses the radioactive decay model. The half-life of radium-226 is 1600 years. Suppose we have a 29-mg sample. (a) Find a function m(t) = mo2-t/h that models the mass remaining after t years. m(t) = 29 2 (b) Find a function m(t) = moe-rt that models the mass remaining after t years. (Round your r value to six decimal places m(t) = (c) How much of the sample will remain after 5000 years? (Round your answer to one decimal place.) X mg (d) After how many years will only 17 mg of the sample remain? (Round your answer to one decimal place.) X yr

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter30: Nuclear Energy And Elementary Particles

Section: Chapter Questions

Problem 12P

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