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Three reservoirs - connected by a branching cast-iron pipe system. If the pipe lengths ar L1 = 3000ft, L2 = 2200, and L3 = 1600 ft the respective pipe diameters are 15,10, and 18in, and the surface water elevations of two of the three reservoirs are A = 125ft and B = 55ft, find the surface water elevation of Reservoir C. Assume that the flow to reservoir C is 15 cfs.
A lake has a steady-state pollution concentration of 50 mg/L and is being fed by a stream with flow rate 50m3/day. The volume of the lake is 1.00 x 10^7 m3, and the decay rate for the pollutant is 0.15/day.
The fluids do not mix and the atmospheric pressure is 1.01 x 105 N/m2. Determine the gauge pressure head and the absolute pressure head in metres of water at i depth of 6.6m below the free surface.
Design a rectangular channel contraction from width b1 (upstream) to width b2 (downstream). Assume uniform flow approaches the contraction (i.e. normal depth approaching the channel contraction).
flow of 600cfs is measured at a depth of 3.4 ft in trapezoidal channel with bottom width of 25ft and side slopes of 3:1(h:v). The channel reach has a slope of .002. Estimate the channel roughness.
Two pipes of identical length and material are connected in parallel. The diameter of one is twice the diameter of the other. What is the ratio of the flow rates (Q2/Q1) in the two pipes
A sample of mortar fills a900 ml beaker. The mortar and beaker combined weighs 3 lb and the empty beaker weighs 2 oz. What is the weight density of this mortar sample?
Shear and normal stresses on aplane that is 37 degrees from horizontal
Consider two cases: (1) a constant wind velocity that is twice the mean wind velocity and operating half the time; and (2) a constant wind velocity that is three times the mean wind velocity operating one-third of the time. At all other times, the wi..
a gate having cross section shown in fig closes an opening 5 ft and 4 ft high in a water reservoir. The gate weighs 400lb and its center of gravity is 1 ft to the left of AC and 2 ft above BC. Determine the horizontal reaction that is developed on..
Design a horizontal curve with a 40-degree central angle (delta=40) for a two-lane road with 11-ft lanes. The design speed is 70 mi/h and superelevation is limited to 0.06ft/ft. Give radius, degree of curvature, and length of curve.
A rear-wheel-drive car 2600 lb, has an 80-inch wheelbase, a center of gravity 20 inches above the road surface and 30 inches behind the front axle, a drivetrain efficiency of 85%, 14-inch-radius wheels,
The soil below the footings consists of a medium grain sand (SP) and water is located at a depth of 5 feet below the ground surface. The preliminary structural plan calls for a 10 foot wide footing located at a depth of 5 feet which must support a..
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