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A sewage plant releases 250 m3/day of effluents containing 195 ppm of a chemical at the center of a wide, slowly meandering stream. The stream is 2.4 m deep and the bed slope is 0.00011.
a) Calculate the shear velocity.
b) Estimate the vertical and transverse mixing coefficients.
c) Assuming that the effluent is completely mixed over the vertical, determine the width of the plume and the maximum concentration 1200 m downstream of the discharge point.Assume uniform equilibrium flow conditions in the river and flow velocity v=1.1 m/s.
The specific weight of aire is .075 lb/ft^3. The physiological limit of the power for this well trained cyclist is .5 hp (1hp=550 ft*lbs/s) Neglect rolling friction, find the max speed of the bicycle.
You are assigned a project to design an exhaust system for a laboratory fume hoods where acids are used. The hood has an opening that is 6' wide x 1' high. The minimum face velocity must be 150 ft/min (average across the face). The entrance loss f..
If the maximum allowable compressive stress of timber is 7MPa, what is the minimum available size of square section post required. (give dimensions as well as area). Please show working.
What are the specifications need to be specified while creating a design for waterways?what are their uses?how are they maintained?
For cubic crystals, as values of the planar indices h, k, and l increase, does the distance between adjacent and parallel planes (i.e., the interplanar spacing) increase or decrease? Why?
Compute and plot (or clearly sketch) the vertical effective stress distribution up to a depth of 34 ft of silt deposit before the lowering of the water table.
When Eurasia restaurant, serving Eurasian cuisine, first opened along Chicago's Michigan Avenue, its novelty brought many diners.
Problem 1: Design of a simply supported reinforced concrete beam
Two new rides are being compared by a local amusement park in terms of their annual operating costs. The two rides are assumed to be able to generate the same level of revenue (and thus the focus on costs).
The average P concentration in the runoff if the overall (agricultural and residential areas) runoff coefficient = 0.4, 40% of P is removed from the agricultural area by rainfall, and 90% of P is removed from the residential area by rainfall.
A big municipal utility district is considering two large-scale conduits. The first includes construction of a steel pipeline at a cost of $200 million.
Determine the radius of taxiway for a supersonic aircraft to negotiate the curve at a turning speed of 50 kmph. the wheel base is 35m and the thread of main landing gear is 7.5m. the airport is a type A as per ICAO
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