Q2- Once it has been started by sufficient suction, the siphon in the Fig. will run continuously as long as reservoir fluid available. Using Bernoulli's equation with no losses, show (a) that the exit velocity V2 depends only on gravity and the distance H and (b) that the lowest vacuum pressure occurs at point 3 and depends on the distance L+H

. Indiana Jones needs to ascend a high-rise building. There is a large hose filled with pressurized water hanging down from the building top. He builds a square platform and mounts four 4-cm-diamter nozzles pointing down at each corner. By connecting hose branches, a water jet can be produced from each nozzle. Jones, the platform, and the nozzles have a combined mass of 150 kg. Determine the minimum water jet velocity needed to raise the system.

Find the location of the stagnation point for the flow due to a vortex +I at (2a, 0) and a vortex -25 at (-2a, 0).

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.