Calculate the work in megajoules (1 mj=1×106 j) required to pump all the water out of a full trough from which water exits by pouring over the sides. an illustration shows an inverted trapezoidal trough with base widths of a on bottom and b on top, a height h, and length c. assume that =11 m, =16 m, c=13 m, and ℎ=2 m. the density of water is 1000 kg/m3, and =9.8 m/s2. (use decimal notation. give your answer to two decimal places.)