Assume a liter of milk typically has an activity of 2000pCi due to 40/19K. If a person drinks two glasses (0.5L) 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 12hr and is then released, Assume also the very roughly 10% of the 1.5MeV released per decay is absorbed by the body. Compare your result to the normal allowed does of 100mrem per year. Make your estimate for
(a) A 50-kg adult, and
(b) A 5-kg baby.