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The maximum dry density determined in the laboratory for a quartz sand is 1800 kg/m^3. In the field, if the relative compaction is 90%, determine the hydraulic conductivity of the sand in the field compaction condition (given that k for the sand at the maximum dry density condition is .040 cm/sec and Gs = 2.65).
Water in a household plumbing system originates at the neighborhood water main where the pressure is 480kPa, the velocity is 5m/s, and the elevation is 2.44 m. A 19 mm (3/4-in) copper service line supplies water to a two-story residence
On a plane within a saturated soil mass, the total normal stress is 185 kPa, the pore-water pressure is 98 kPa and the shear stress is 42 kPa. The soil undergoes shear failure and reaches critical state on this plane
determine the width of the flume to be used such that the depth of flow immediatly upstream of the throat under design conditions is 1 m. By what percentage is the capacity of the flume reduced if the downstream depth is 0.85m
Determine the normal depth of flow before and after the change in gradient. Will it be possible to produce a hydraulic jump in the channel downstream of the junction of two slopes?
calculate the cracking moment (resisting moment) for an unreinforcedconcrete beam that is 10 in. wide, 16 in. high. assume normal weight concrete with 3000 psi = f prime sub c. use the internal couple method and check with the flexure formula.
Which emits more SOx per unit amount of electricity produced: a coal-fired plant with a 90% efficient SO2 scrubber or an oil-fired plant with no scrubber? Assume the coal has a heat content of 13,000 Btu/lb and contains 3.5% sulfur, and that the oil ..
Briefly explain the difference between piezometer and tensiometer with respect to the working principle, special design consideration and limitation of the instrument.
During a 60 minute storm the following amounts of rain fell during successive 15 minute intervals: 33mm, 23mm, 15mm, and 5mm. What is the maximum intensity
Consider again the proposed water treatment plant for a city of 100,000 people where the maximum daily water usage rate is 99 X 106 L/d. Determine
Given that an aircraft flying at FL350 encounters a tailwindof 35 knots and the instrument in the cockpit shows anindicated airspeed of 310 knots. What is the standard atmosphere atthis altitude?
A paper mill releases 1 m^3/s of treated effluent at 75 C, which is mixed with captured rain water at 13 C before it is released to a nearby river. Regulations dictate that the effluent discharge cannot be over 20 C.
given: Vf=Vi + a t and Sf=Si + Vi t + 1/2 a t Cedar points millennium force accelerates from 10 mph to 93 mph in 4.5 seconds. assuming acceleration is constant, find acceleration in ft/sec^2 and distance traveled in meters
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