A farmer is to pump water at \(20^{\circ} \mathrm{C}\) from a river to a water storage tank nearby using a \(40-\mathrm{m}\)-long, 12-cm-diameter plastic pipe with three flanged \(90^{\circ}\) smooth bends. The water velocity near the river surface is \(1.8 \mathrm{~m} / \mathrm{s}\), and the pipe inlet is placed in the river normal to the flow direction of water to take advantage of the dynamic pressure. The elevation difference between the river and the free surface of the tank is \(3.5 \mathrm{~m}\). For a flow rate of \(0.042 \mathrm{~m}^{3} / \mathrm{s}\) and an overall pump efficiency of 70 percent, determine the required electric power input to the pump.