Sunday, March 4, 2012

Radiation machines, used to treat tumors, produce an intensity of radiation that varies inversely as the squar?

Radiation machines, used to treat tumors, produce an intensity of radiation that varies

inversely as the square of the distance from the machine. At 3 meters, the radiation intensity is

62.5 milliroentgens per hour. What is the intensity at a distance of 3.3 meters?Radiation machines, used to treat tumors, produce an intensity of radiation that varies inversely as the squar?
so easy.....let it be x

x/62.5 = (3/3.3)^2

x = 51.65 milliroentgens/hr.

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