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The pedestal supports a load P at its center. If the material has a mass density p, determine the radial dimension r as a function of z so that the average normal stress in the pedestal remains constant. The cross section is circular.
An ocean outfall diffuser that discharges treated wastewater into the Pacific Ocean is 500m from a public beach. The wastewater contains 105 coliform bacteria per milliliter. The wastewater discharge flow rate is 0.3 m3/s.
A beryllium copper wire having diameter of 1-50 mm and length of 40mm is used as a small torsion bar in an instrument. determine what angle of twist would result in the wire when it is stressed to 250 mpa.
a layer of clay, 5m thick, overlies a deposite of sand, 5m thick, which is underlaid by rock. the water table in the sand is sub-artesian with a level at 2m below fround level. the saturated unit weights of the clay and sand are 21 and 16 KN/m^3 r..
A 24-in.-wide by 0.100-in.-thick by 140-in.-long steel sheet is to be formed into a hollow section by being bent through 360° and having the long edges welded (i.e., butt-welded) together. Assume a cross-sectional medial length of 24 in.
One method of finding roots of an equation on a computer is the false position method. The idea is that for a function f(x), you find two values, f(x1) and f(x2) such that f(x1)* f(x2) is less than zero (think about what that means).
The two shafts are made of A-36 steel. Each has a diameter of 25 mm and they are connected using the gears fixed to their ends. Their other ends are attached to fixed supports at A and B.
In determining the difference between points A and B, the inclined distance was measured to be 157.65 ft. The transit was set u on point A. The height of its transverse axis was 5.2 ft about point A
For the following position r and the force F, determine the angle and the magnitude of the force along the position vector. Also determine the force vector along the positon vector.
Each stage can perform 60 % water recovery (Qp/Cf) and 90% salt rejection (1-Cp/Cf) A) What is the overall product water recovery and salt rejection b)what is final product water flow rate (m^3/day) and quality in terms of TDS (mg/L).
How far apart must two 18 , diameter tanks be placed such that their stress overlap is not greaer than 10% of the contact stress at depths of 10, 20, and 30 m
calculate the ratio of area to volume for unit cube a unit sphere in inscribed inside the cube, and as write cylinder inscribed inside the cube.
A groundwater is contaminated with methyl tertiary butyl ether (MTBE) at a concentration of 20 mg/L.the groundwater will be treated with an advanced oxidation process that involves formation of hdyroxyl free radical (OH*).
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