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An earthen channel will be excavated into sandy soil for which Vmax = 4.0 ft/sec, n = 0.022, and the recommended m = 3. The channel will have a bottom slope of 0.0011 and accommodate a design flow of 303 cfs. Design (size) the channel section.
At an axial load of 23 kN, a 40-mm-wide by 10-mm-thick polyimide polymer bar elongates 2.7 mm while the bar width contracts 0.17 mm. The bar is 240 mm long. At the 23-kN load, the stress in the polymer bar is less than its proportional limit.
You plan to use a tank of total volume V= 10 m3 to remove a contaminant at concentration Cin = 1 g/m3 from a waste stream with a flow rate of Q = 1 m3/h. The reaction is first order with a rate constant k1 = 0.5 h-1.
The distance covered by an aerial photograph is determined by both the focal length of the camera and the tilt of the camera. Although the tilt is usually small, both archaeological and Canadian photographs often use larger tilts.
Determine the corresponding error in the computed discharge
the flow profile is such that u=u(max)*(1-(r/R)^2) where u is the flow speed and r is the distance from the centre of the pipe in the radial direction. What is the shear stress on the pipe wall What is the shear force exerted by the oil on a 1m lo..
Determine the mass ratio, For a vehicle in gravitationless space, determine the mass ratio necessary to boost the vehicle velocity by 1600 m/sec
The scale of a spring balance reading from 0 to 235 N has a length of 13.0 cm. A fish hanging from the bottom of the spring oscillates....
The inlet of loe pressure turbine is 500Kpa and 500°C. Condenser operates at 10 Kpa. Determine the mass flowrate through boiler needed to produce 5000KW of power.
Provide a comparative analysis of the types of safeguards would you suggest for the company's information system.
It is desirable to produce a copper-nickel alloy that has a minimum noncold-worked tensile strength of 390 Mpa and a ductility of at least 40% elongation. Is such an alloy possible If so, what must be its composition
A sample of soil was compacted into a 945 ml.laboratory mold. The mass of the compacted soil was 1850 grams and its moisture content was 13.1%. Specific gravity of solids is 2.70, Compute the moist unit weight, dry unit weight, and degree of satu..
To float a 160 pound man using helium balloons (assume 0.52 cubic feet per inflated balloon). How many balloons would it take? Assume density of air is 1.29 kg/cubic meter and the density of helium is 0.179 kg/cubic meter.
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