A radioactive material initially is observed to have an activity of1,000 decays/sec. If three hours later it is observed to have anactivity of 125 decays/sec, what is its half-life?
The answer is 1 hour, but I don't understand how to do thisproblem?

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A radioactive material initially is observed to have an activity of1,000 decays/sec. If three hours later it is observed to have anactivity of 125 decays/sec, what is its half-life?
The answer is 1 hour, but I don't understand how to do thisproblem?

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A radioactive material initially is observed to have an activity of1,000 decays/sec. If three hours later it is observed to have anactivity of 125 decays/sec, what is its half-life?The answer is 1 hour, but I don't understand how to do thisproblem?

Related textbook solutions

Physics: Principles with Applications

Related questions

Weekly leaderboard

A radioactive material initially is observed to have an activity of1,000 decays/sec. If three hours later it is observed to have anactivity of 125 decays/sec, what is its half-life?
The answer is 1 hour, but I don't understand how to do thisproblem?