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1.A cylindrical tank 5-m in diameter is filled with water to 3-m depth. A very short horizontal pipe with 20-cm diameter and rotary valve is used to drain the tank from the bottom. How long does it take to drain the tank to 50%?
2.Water flows through a 4-cm pipe, wrought iron, horizontal pipeline 50-m long from point A to B, and contains a fully opened gate valve and two elbows (R/D = 4). If the pressure downstream at B is 192 KPa and flow rate is 0.006 m^3/s, what is the pressure at point A?
3.A 100 mm long rod has a diameter of 15 mm if an axial tensile load of 10kn is applied to it determine the change in its diameter
E = 70
Gpa, v = .35
Assuming the lagoons are well mixed and that there are no losses or gains of water in the lagoon other than the sewage input, what biodegradation reaction rate coefficient (in day^-1) must be achieved for a first order reaction that governs the de..
Draw the shear and bending moment diagrams for the beam AB, and determine the maximum absolute values of the shear and bending moment.
Let the lengths be 600mm and 300mm , and the angle 50 degrees . If the permitted additional elongation of the cable is 0.20mm , determine the maximum allowed distributed force per length q.
John Adams has a $65,000 adjustable gross income from Apple Corp. and allowable itemized deductions of $7200. Mary Eve has a $75,000 adjustable gross income and $2000 of allowable itemized deductions.
Two wells had been drilled on 40-acre spacing. Well 1 is injectionand Well 2 is producing well. Down hole injection pressure is 8500psi, and bottom hole pressure in producing well is 2400 psi.
A horizontal prestressing force of 500kN is applied to a rectangular beam. The beam has a depth of 450mm and a width of 250mm. The force is applied at a distance of 60mm below the sections x-x axis.
A pipe is to be installed under the ground on a bed of aggregate 6 in. thick. The entire weight on the aggregate from pipe and soil above the pipe is 1800 lbs. per linear foot of pipe. What is the pressure on the soil if theta is 45 degrees
If a mechanical device requires 450J of work to do 310J of work in lifting what is the efficiency of the device?
the casting has a mass of 3 mg. suspended in a vertical position and initially at rest it is given an upward speed of v
An obstruction is lodged in a 10-ft wide rectangular channel (n = 0.022) that has a botom slope of 0.005. The depth of the channel just upstream of the obstruction is 5.0 ft. If the flow rate is 325 cfs, what is the channel and flow classification
If a new piece of equipment costs $40,000.00 to purchase and it has a benfit of $500 per day. How many days per year does the equipment need to be used in order to be worth purchasing (breaking even)
Base course aggregate has a target dry density of 119.7 Ib/cu ft in place. It will be laid down and compacted in a rectangular street repair area of 2000 ft by 48 ft by 6 in.
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