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A rectangular clarifier with a length:width ratio of 3:1 receives a flow of 850m3/day. the clarifiers depth is 4.0m and the detention time of the water inthe clarifier is 2.4 hrs, what are the surface overflow rate and the horizontal flow through velocity?
Calculate the depreciation using straight-line, double-declining-balance (DBB), and MACRS (current IRS regulation) methods; and tabulate the depreciation schedule.
If bod5 and ultimate bod of a municipal wastewater are 200mg/l and 457 mg/l respectively what is the reaction rate constant? a) .265 b) .050 c) .115 d) .165
The temperature of the poker at the third points of the poker using three elements of equal length. Use the finite element method. You may use Mathcad to solve this problem. If you do, please show all work and add comments to the Mathcad solution ..
The horizontal motion of plunger and shaft is arrested by resistance of the attached disk which moves through the oil bath. If the velocity of plunger is v.
Samples of 20 rivets for a steel structure are checked for quality every hour. The probability of finding a bad rivet that has to be scrapped is 1%.assume that x is the number of parts in the sample of 20 that have to be scrapped.
Determine the number of man-hours required to form the structure using data from R. S. Means or other appropriate reference. What is the difference between labor cost and labor pro-ductivity?
The train passes point A with a speed of 30 m/s and begins to decrease its speed at a constant rate of at = - 0.25 m/s2. Determine the magnitude of the acceleration of the train when it reaches point B, where sAB = 412 m.
What would be the Horizontal and vertical component from this acting force see diagram
Determine: a) the height of the water, with respect to the base of each standpipe, and b) the effective stress at the depth of each standpipe, at the following times:
Determine the required pumping rate. the aquifer has T= 1600 m 2 /day and the wells each have radius of influence of 600m.
Evaluate the percent mass loss for each of the three thermal events indicated on the attached TGA trace
Given an 18-in. concrete conduit with a roughness coefficient of n = 0.013, s = 0.02, and a discharge capacity of 15 cfs, what diameter pipe is required to triple the capacity?
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