A radioactive substance with initial mass of 600 g has a half-life of 6 weeks. a) Determine an equation to relate the mass remaining to time. b) Find the amount remaining after 12 weeks. c) How long will it take for the sample to decay to 75g?
A radioactive substance with initial mass of 600 g has a half-life of 6 weeks. a) Determine an equation to relate the mass remaining to time. b) Find the amount remaining after 12 weeks. c) How long will it take for the sample to decay to 75g?
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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Transcribed Image Text:A radioactive substance with initial mass of 600 g has a half-life of 6 weeks.
a) Determine an equation to relate the mass remaining to time.
b) Find the amount remaining after 12 weeks.
c) How long will it take for the sample to decay to 75g?
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