Using the decay power equation defined below, evaluate the total decay energy generated in a 3300MW th LWR after the reactor shuts down. The reactor operated for 0.5 year at the equivalent of 80% of total power. The decay power equation is defined as: P0P=0.066[(s)0.20.2] Where P0 is the reactor operating power before it was shuts down. and s are, respectively, the time after reactor startup and time over which the reactor has been operating at a constant power. Consider the following time periods after shutdown: a). 2 hours [10 Marks] b). 48 hours [10 Marks] c). 30 days [10 Marks]