Water flows around the vertical two-dimensional bend with circular streamlines as is shown in Fig. P3.13. The pressure at point (1) is measured to be \(p_{1}=25 \mathrm{psi}\) and the velocity across section \(a-a\) is as indicated in the table. Calculate and plot the pressure across section \(a-a\) of the channel \([p=p(z)\) for \(0 \leq z \leq 2 \mathrm{ft}]\).

Figure P3.13

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z (ft) V (ft/s) 0 0 0.2 8.0 0.4 14.3 0.6 20.0 0.8 19.5 1.0 15.6 1.2 8.3 1.4 6.2 1.6 3.7 1.8 2.0 2.0 0