Gamma rays may be used to kill pathogens in ground beef. one irradiation facility uses a 60co source that has an activity of 1.0×106ci. 60co undergoes beta decay and then gives off two gamma rays, at 1.17 and 1.33 mev; typically 30% of this gamma-ray energy is absorbed by the meat. the dose required to kill all pathogens present in the beef is 4000 gy.

how many kilograms of meat per hour can be processed in this facility? express your answer in kilograms per hour.