prob 3 knief 6-6) based on the 0.025-ev cross sections and the decay constants in fig. 2-16 and a thermal-neutron flux of 5 x 1013 /cm2s: (4 points total) a. estimate the fractional depletion of 235u during 1 year of operation. b. estimate the fraction of 238u that would be converted to 239u in 1 year. c. calculate the instantaneous decay and neutron absorption rates for 239u nuclei and determine their fraction of the combined loss rate. d. repeat (c) for 239np. e. estimate the fraction of 238u absorptions that result in the production of 239pu.