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1.A trapezoidal river channel section has a base dimension of 30 feet, a liquid depth of 4 feet, and side slopes of 4 to 1 (horizontal to vertical).
A) By integration, determine the location of the centroid relative to the channel bottom of this trapezoidal section.
2.Consider a 200ft high, 1200ft wide dam filled to capacity. Determine the hydrostatic force on the dam and the force per unit area of the dam near the top and near the bottom.
3.Design a 2:1 rectangular duct and fan system to pull 40000 scfm of air carrying a medium-density dust through an FCD (Final Control Device) with a ?P of 6.0 in. H2O. Assume the duct system must extend 120-feet and has four 90° elbows.
A water sample contains 118mg/L of bicarbonate ion, 19mg/L of carbonate ion, and has a pH of 9.5. What is the alkalinity of this water expressed as mg/L of CaCO3
Rock masses that donot have the desired properties for a givencivil engineeering application are improved. The method of choicedepends on the purpose for which the rock mass is intended. amongthe common methods for increasing the strength of fissured..
Find the maximum shearing stress and its location in the shaft and the angle of twist of A with respect to C. Let G = 4x10^6 psi for the entire shaft.
A Carnot heat engine is supplied with a high temperature heat source at a rate of 200 kW. If the power output of the heat engine is 120 kW, determine the required source temperature if the heat sink temperature is 20 °C.
A passive dosimeter is to be designed for use in obtaining monthly average concentrations of atrazine in a stretch of river. Typical concentrations range from 10 to 50 g/L. Atrazine, a herbicide commonly found in runoff from agricultural lands.
A four-wheel tractor whose operating weight is 47,877 lb is pulled up a road whose slope is +3.5% at a uniform speed. If the average tension in the towing cable is 4,860lb, what is the rolling resistance of the road?
Please let me know whether we can cover these facilities or not and what is micro-biological process in these. If we can provide cover than what will be the effect on its biological process.
When a theoretical cutting plane is passed through an axially loaded prismatic bar, perpendicular to the longitudinal axis of the bar, and one side is analyzed as a free-body diagram, there is a uniformly distributed force acting on the bar's cros..
What superelevation rate would you recommend for a roadway with a design speed of 100 km/hr and a radius of curvature of 500 m? Assume f = 0.11.
an iron cube at 400 degrees Celsius is dropped into a insulated bath containing 10kg of water 25 degrees Celsius. the water finally reaches a temperature of 50 degrees Celsius at steady state.
the flow rate is 600 cfs. for a long distance upstream the bottom slope is 2.5%. the bottom slop of the channel abruptly changes to 0.6% and continues at that slope for a long distance determine the location of the hydraulic jump.
The total dissolved inorganic carbon (TIC) of a sample of groundwater is 8.33 mM. The temperature of the aquifer is 15C, the pH is 7.5, and the ionic strength is 0.05 M. What is the H2CO3, HCO3-, CO3 2-, and the partial pressure of CO2? [Use activ..
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