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A sewer pipe must be laid from a starting invert elevation of 650.73 ft at station 9 + 25 to an ending invert elevation of 653.81 ft at station 12 + 75. Determine the uniform grade needed, and calculate invert elevations at each 50-ft station.
A simple curve has a central angle of 42degreess. A point Y is located 24m from the vertex and has a perpendicular distance of 3.00m from the back tangent.
A thick steel sheet of area 440cm3 is exposed to air near the ocean. After a one-year period it was found to experience a weight loss of 880g due to corrosion. To what rate of corrosion in mm/yr dose this correspond.
average flow rate = .0022 m^3 /s (190 m^3 /d) Influent Substrate concentration = 250 mg/L as COD (all essentially soluble) Mean cell residence time is to be 5 days Volume of mix tank = 25 m^3 the reactors kenetic constants are
Drawdown at an observation well 15 m from the pumped well is 3.0 m, and drawdown at a second observation well 150 m away is 0.30 m. find the hydraulic conductivity of the aquifer.
a horizontal curve was designed for a four-lane highway for adequate ssd. lane widths are 12 feet and the
Use this result to estimate the attenuation distance of light in water
One milligram per liter of hypochlorous acid (HOCl) is added to water to achieve disinfection of pathogenic bacteria. The disinfection potential of HOCl is 10 times greater than that of hypochlorite (OCl-).
The city of Lancaster's water distribution system has 3 wells for water supply. There are 10 pumps at these wells. It is estimated that a pumping rate of 10,000 gallons per minute is needed to satisfy the city's total water demand.
Determine the elastic and plastic section modulus of the I-beam. The axis runs through the center of the beam on both x and y axis (completely symmetrical). Beam properties: h= 12inches tf= 0.5 inches bf= 6 inches tw= 0.25 inches
How do I solve for the maximum bending and shear moments for a statically indeterminate structure?
A flocculation/sedimentation combination basin in a conventional drinking water treatment plant is to be constructed of cast-in-place reinforced concrete. The horizontal flow rectangular basin will be located in New Jersey, USA.
Identical bricks 0.1m wide, and weighting 2kg are placed on a plate (assume the plate has neligible weight). Calculate the total weight (and force F required to balance the plate). How far from x=0 should F be placed so that the plate will not tip..
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