A patient undergoing radiation therapy for cancer receives a 215-rad dose of radiation. (a) Assuming that the cancerous growth has a mass of 0.17kg, calculate how much energy it absorbs. (b) Assuming the growth to have the specific heat of water, determine its increase in temperature.

Answer
A. 0.37 J
B 0.51 mK

A drug prepared for a patient is tagged with 99 Tc, which has a half-life of 6.05h.
43
(a) What is the decay constant of this isotope?
(B) How many nuclei are required to give an activity of 1.50 uCi?

Answer
A. 0.115h^-1
B. 1.7x10^9 nuclei

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A patient undergoing radiation therapy for cancer receives a 215-rad dose of radiation. (a) Assuming that the cancerous growth has a mass of 0.17kg, calculate how much energy it absorbs. (b) Assuming the growth to have the ...

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