Water flows in the river shown in Fig. P10.27 with a uniform bottom slope. The total head at each section is measured by using Pitot tubes as indicated. Determine the value of \(d y / d x\) at the location where the Froude number is 0.357 .

Figure P10.27

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Pat (1) (3) (4) = 620.1 ft Z=628.3 ft x2-x = 4100 ft 2=618.7 ft 24 = 625.0 ft