Problem 60337.

Problem 60337.

The average human body contains 0.21 potassium. In this case, 0.012 potassium comes from the radioactive isotope 40K12 with a half-life of 1.25*10^9 years. With each decay event, on average, 0.50 MeV of energy is absorbed in the human body. How many decays per second occur in the body of a person weighing 60 kg? What is the absorbed power (in joules)?

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