The flow rate in a pipe system connecting two reservoirs (at different surface elevations) depends on the characteristics of the pump, the roughness of the pipe, the length and diameter of the pipe and the specific gravity of the fluid. For an 800 ft section of 6 in. pipe connecting two reservoirs (with a 5 ft differential in elevation) containing oil of specific gravity 0.8, with a 6 hp pump, the equation for the flow rate Q is 12Q3+5Q-40=0 Approximate the real root of the equation in the interval OSQ < 2

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