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An industrial worker accidentally inhaled a radioisotope with an activity of 0.200 kBq. The substance swallowed has a very long effective half-life and therefore the activity will not change significantly during the worker’s lifetime. Every decay of the isotope releases 1.12 x 10-14 J of energy into the body and the radioisotope is not eliminated from the body.

Determine the amount of energy absorbed in one year by the worker from this substance.

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Kirsten

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