Energy math question -- Energy to melt lake ice sheet 1. The problem statement, all variables and given/known data Lake Champlain bordered by New York, Vermont and Quebec has a surface area of 1, 126 km^2. If it freezes solid in the winter with an average ice thickness of .5 m, how much total energy does it take ti melt the ice once spring comes? The density of ice is about 920 kg/m^3 and the heat of fusion is 334 kJ/kg. 2. Relevant equations 3. The attempt at a solution I don't even know what formula to use for this problem and am very confused. If someone could do this out for me that would be great!