After the release of radioactive material into the atmosphere from a nuclear power plant in a country in 1990, the hay in that country was contaminated by a radioactiv isotope (half-life 8 days). If it is safe to feed the hay to cows when 9% of the radioactive isotope remains, how long did the farmers need to wait to use this hay?
After the release of radioactive material into the atmosphere from a nuclear power plant in a country in 1990, the hay in that country was contaminated by a radioactiv isotope (half-life 8 days). If it is safe to feed the hay to cows when 9% of the radioactive isotope remains, how long did the farmers need to wait to use this hay?
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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