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A 12-in diameter concrete culvert (n=0.013) flows half full and is constructed on a grade of 0.5 %. What would be the expected flow velocity?
If 110 mg/L Alum (Al2(SO4)3 14H2O) is added to water containing a natural alkalinity of 20 mg/L as CaCO3, 1) how much lime (mg/L as CaO) must be added to react with the alum 2) How much precipitate (mg/L as Al(OH)3 ) is formed
If the atmospheric pressure is 14.20 psia and a gage attached to a tank reads 12.5 inHg vacuum, what is the absolute pressure within the tank
Describe the basic principle of differential GNSS positioning and the difference between real time differential GNSS and post processed differential GNSS.
A rear-wheel-drive 3000lb drag race car has a 200-inch wheel base and a center of gravity 20 inches above the pavement and 140 inches behind the front axle. The owners wish to achieve an initial acceleration from rest of 15 ft/s on a level paved s..
The cost of a 100,000 bbl/d ethanol unit is $40,000,000. From historical records, the capacity exponent ratio for CCR is 0.75. Estimate the cost of a similar ethanol unit with a capacity of 135,000 bbl/d.
The modules of elasticity of the wood is 12 GPa. If one side of the column is 25 cm across, find the minimum dimension of the other side to keep the column's deformation under 1.3 mm.
determine the elastic elongation that would be expected for a 16-mm-diameter rod of the same material if the rod were 1.6 m long and subjected to a tension force of 3.3 kN.
Determine the number of completely mixed chlorine contact chambers each having a detention time of 30 min that would be required in a series arrangement to reduce the bacterial count of a treated effluent form 10^6 to 14.5 organisms/mL
Find the maximum production rate of B in moles per minute and the optimum for (a) a plug flow reactor (b) a mixed flow reactor Find the production rate of B in moles per minute for (c) a mixed flow reactor with V = 100 m3
Forces F and P have magnitudes of F=40 lb. and P= 60 lb., Using the paralellogram law, determine the magnitude of the resultant R and the angle theta it makes with the horizontal. The given angle is 40 degrees.
A water supplier wants to inject ozone into a piper bringing water to the water treatment plant to predisinfect the influent. The 3.0-ft diameter piper is 3,400 feet long with a steady flow rate of 10,000 gal/min.
Waste water is dischared into a aquifer. This waste water contains 0.1 ppm atrazine (a common herbicide). The MCL of atrazine is 5 ppb, the density is 1.19 g/ML and the solubility is 50 ppm.
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