Assume a liter of milk typically has an activity of 2000 pCi due to 4019K. If a

Question

Assume a liter of milk typically has an activity of 2000 pCi due to 4019K. If a person drinks two glasses (0.5 L) per day, estimate the total effective dose (in Sv and in rem) received in a year. As a crude model, assume the milk stays in the stomach 12 hr and is then released. Assume also that very roughly 10% of the 1.5 MeV released per decay is absorbed by the body.

Part A

Estimate the total effective dose in Sv/year for a 90-kg adult.

Express your answer using one significant figure.

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Part B

Estimate the total effective dose in rem/year for a 90-kg adult.

Express your answer using one significant figure.

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Part C

Compare your result to the normal allowed dose of 100 mrem per year.

Express your answer using one significant figure.

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Part D

Estimate the total effective dose in Sv/year for a 10-kg baby.

Express your answer using one significant figure.

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Part E

Estimate the total effective dose in rem/year for a 10-kg baby.

Express your answer using one significant figure.

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Part F

Compare your result to the normal allowed dose of 100 mrem per year.

Express your answer using one significant figure.

Explanation / Answer

P = (2000 x 10

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