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a) Steady, frictionless air, at 100 kPa and 25 C, flows in a horizontal duct that has a cross sectional flow area reduction in it. The reducer smoothly forms the 18 cm diameter duct to a 10 cm duct. A U-tube water manometer connects on both ends of the reducer component and shows a liquid difference level of h = 8 cm. The flow in the larger 18 cm duct is considered to be moving very slowly compared to the 10 cm duct flow. Adapt Bernoulli's and ideal gas equations to determine the flow's velocity in the smaller duct. (b) Note that the velocity is proportional to the square root of the manometer reading {i.e. V=k*h^0.5}where k is a proportionality constant. And uncertainty is the differential of the velocity divided by the velocity {dV/V} Determine the uncertainty of the velocity measured when the uncertainty of the manometer reading is +/- 2mm. R = 0.287 kPa*m^3 / kg*K water density = 1000 kg/m3
Coal is discharged from the tailgate of a dump truck with an initial velocity vA = 2 m/s A 50°. Determine the radius of curvature of the trajectory described by the coal.
you have a bevel gear and shaft and you have to find the maximum load that can be applied on it. what type of
Determine the bolt stiffness, the tube stiffness, and the joint constant C.
homebuilding has undergone significant advances in the last 20 years due largely to replacement of hand tools hammers
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1 consider the diagram below where a pump is used to draw water from a lake to feed an irrigation system.a which of the
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Determine an expression for the number of cycles to failure, Nf if the initial crack size is a0. State any assumptions you make.
What would happen if the air filter was partially choked. If the piston rings were leaking state what you would expect the results of a, b, c, and d above would be.
initially 0.05 kg of air is contained in a piston-cylinder device at 200 degc and 1.6 mpa. the air then expands at
nitrogen at 100c and 600 kpa expands in such a way that it can be approximated by a polytropic process with n 1.2.
control engineeringyou have to design a control system for an annealing furnace. the furnace is used to anneal special
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