P3.12 The pipe flow in Fig. P3.12 fills a cylindrical surge tank as shown. At time t = 0, the water depth in the tank is 30 cm. Estimate the time required to fill the remainder of the tank. D=75 cm- 1 m V₁ = 2.5 m/s d = 12 cm V₂-1.9 m/s
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