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A river is 6 m deep. The riverbed material has a saturated unit weight of 19.5kN/m3.
What is the effective vertical stress 12 m below the water surface?
Consider again the scenario above. Assume the water is static. Assume a datum at the water surface.a) What is the total head 5.0m below the river bed?b) What is the pore water pressure at that level?
Two box culverts each is 0.61 m by 0.61 m and has n = 0.013, Ke = 0.05, Cd = 0.85, L = 30 m, So = 0.7%, and HW = 1.5 m. a. What is the design flow capacity for free outlet condition b. What is the design flow capacity for tailwater of TW = 1 m
After moving the bubble four divisions off center, the reading is 1.410 m. For 2-mm vial divisions, what is (a) the vial radius of curvature in meters and (b) the angle in seconds subtended by one division
What is the concentration of tracer in the reactor 1 h after tracer addition is terminated? The reactor had an initial concentration of tracer of 1.0 mg/L when tracer addition commenced.
The air transport B is flying with a constant speed of 480 mi/hr in a horizontal arc of 9-mi radius. When B reaches the position, aircraft A, flying south-west at a constant speed of 360 mi/hr
A force, 90 N in magnitude, is applied to control rod AB as shown. Knowing that the length of the rod is 225 mm, determine the moment of the force about point B by resolving the force into components along AB and in a direction perpendicular to AB..
The mine wants to change the hole diameter to 229 mm and needs a new drilling pattern that will not result in coarser fragmentation. For this exercise you can assume homogenous geology and no adverse effects due to geological structure.
Water is pumped 9 mi from a reservoir at elevation 100 ft to a second reservoir at elevation 210 ft. The pipeline connecting the reservoirs has a 54-in diameter. It is concrete and has an absolute roughness of 0.003.
The mean score of students on an aptitude test is 72 points with a standard deviation of 8 points. What is the probability that two groups of students, consisting of 28 and 36 students respectively,
A water treatment plant is being designed for a flow of 1.6 m^3/s. How many rapid sand filters, using only sand as the medium, are needed for this plant if cross-sectional area of each filter is 10 m x 20 m
At a depth of 4 miles in the ocean the ppressure is 9520 psia. Assume that the specific weight at the surface is 64.0 lb/ft^3 and that the average volume modulus is 320000psi for the pressure range.
The left-hand span is 16 ft and the right-hand span is 20 ft. The beam supports a uniform load of 900 plf, which includes its own weight, over the entire 36 ft and also a concentrated load of 10,000 lb applied at a point that is 5 ft from the left..
Two particles start from the same point along the same straight line and at the same instant. The first particle travels with a constant velocity v and the second with a constant acceleration.
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