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Problem 1: The Steel beam has the cross-sectional area shown and the steel has elastic constant of E = 210 GPa, v = 0.3. The thickness of vertical wall is 6 mm and those for horizontal are 4 mm. For the flange,b1 = 60 mm and b2 = 120 mm. the height of the cross section counting from the mid planes of the flanges is 200 mm. determine:
a. The largest intensity of distributed load wo that it can support so that the maximum bending stress in the beam does not exceed σmax = 135 MPa.
b. The value and locations of maximum and minimum bending stresses subjected to such a distributed load wo.
c. The maximum transverse shear force and maximum shear stress subjected to such a distributed wo and
d. The location of the shear centre e.
An activated sludge tank, 30 x 30 x 200 ft, is designed as a plug-flow reactor, with an influent BOD of 200 mg/L and a flow rate of 1 million gallons per day. a. If BOD removal is first-order reaction, and the rate constant is 2.5 days^-1, what is ..
You are provided that a 33-year record of peak annual flow rates was subjected to a frequency analysis. You are interested in the median value. Thus, for part (a), what is the probability that the probability if the flow rate exceeds the median value..
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WHat volume of sludge must they dispose of each year if their sand drying beds yield a solids concentration of 35%
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How much oxygen (mg O2) is required to support the complete oxidation of 500 mg acetate (CH3COOH). How much carbon dioxide (CO2) will be produced
Determine the minimum length of a sag vertical curve if the grades are ?4% and +2%. Design speed is 70 mph. State assumptions used, consider the following criteria:
A particular crest vertical curve (VC) on US 280 at Shelton Mill Rd has long been criticized as being unsafe. Its length is 400 feet. The prevailing speed on the crest VC is 50 mph. In its present condition, its tangent grades are G1=2 percent and..
A classic car is d riving down an incline at 60 km / h when its brakes are applied. Treating the car as a particle, neglecting all forces except gravity and friction, and assuming that the tires slip
THE HOME DEPOT IN RED HOOK ,BROOKLYN IS LOOKING TO RENOVATE THEIR STEEL ROOF TRUSS.YOU HAVE BEEN ASKED TO DETERMINE THE CENTROID,MOMENT OF INERTIA,SECTION MODULUS AND RADIUS OF GYRATION OF THE DOUBLE ANGLE.
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