Consider a following figure showing a jet of water supporting a weight of 100 N at a heigh of 5m. Water leaves the nozzle with a velocity of 20m/s .The diameter d of the nozzle will be?

Pro er hydrant nozzle in Fig. 1 has inlet and outlet diameters, D₁ = 8 cm and D₂ 1.0 cm. Water at 20°C flows through the nozzle at 0.001 m³/s and exits to the atmosphere. The atmospheric pressure is 101.3 KPa. Neglect the weight of the piping and nozzle. Compute: a) The exit fluid velocity, V2, ( b) The inlet pressure, Pl c) The horizontal force which must be resisted by the = flange bolts S d) The moment acting on the flange neglect the weight of the hydrant and water 10 m 8 cm Fig. 1: Water hydrant 1

A jet of air having velocity V₁ and cross-sectional area A₁ strikes an inclined plate as shown in the figure. Neglect any effects of viscosity. V₁ (a) Find V₂ and V3 in terms of V₁. Note that the pressure is patm everywhere. (b) Because viscous effects are negligible, there is no way for the air to exert a force on the plate in the tangential (z) direction. Using the coordinate system in the figure, find A₂ and A3 in terms of A₁ and 0. (c) For V₁ = 50 m/s, A₁ = 5 x 10-4 m², and 0 = 60°, find the force required to hold the plate in place. Neglect the weight of the plate. Recall that pair = 1.225 kg/m³.