On Aug. 6th1945 the United States bombedthe Japanese City of Hiroshima with a 235Uranium based bomb killingsome 140,000 people. It contained 64 kg of uranium (assume ofpure 235U).Some 600 mg of that uranium were converted into energy during the explosion. Which percentage of the employed uranium under wentfission? The fission energy is on average (depending on the productnuclei) 215 MeV.