Conservation of Energy (Mechanical, Gravitational)

You pull your calculator from your belt and, quickly calculate this angle. How much energy did the archerfish expend to expel the water? Make some assumptions about the volume of the water expelled. (1760 yd/1 mile; 5280 ft/1 mile; 4.44822 Newtons/1 pound; 32.3 g/ 1 ounce; 1 gallon of water weighs 8 lbs). ................
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