Lake Erie contains roughly 4.00 x 10$^{11}$ m$^3$ of water (a) How much energy is required to raise the temperature of that volume of water from 11.4$^\circ$C to 24.4$^\circ$C? (Assume the density of this water to be equal to that of water at 20$^\circ$C and 1 atm) (b) How many years would it take to supply this amount of energy by using the 1,200-MW exhaust energy of an electric power plant?
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