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Draw the FBD of the entire frame, assuming that friction and the weights of the members are negligible. How many unknowns appear on this FBD?
A horizontal pre-stressing force of 750kn is applied to a rectangular concrete beam to be used as a structural member of a traffic bridge. The beam has a depth of 500mm and a width of 250mm. The force is applied at a distance of 80mm below the sec..
what is the second year book value for equipment with an initial cost of $11,000, a salvage value of 1,000 and a recovery period of 5 yrs for A. straight line depreciation. B. Double declining balance. C. MACRS
A rectangular channel carries a discharge of 2.00 m3/sec per meter of channel width over a weir crest that is 1.4 m in height. The energy grade line upstream of the weir measure 2.7 m above the channel bottom
When the ambient air is at 70 degrees Fahreneit, 14.7 psia, and contains 21% oxygen by volume, 4.5 lb of air are pumped into a scuba tank, capacity 0.75 ft^3. What volume of ambient air was compressed?
A typical paper clip weighs 0.59 gram and consists of BCC Iron. The density of iron is 7.87 gram/cm3 and its atomic radius is 0.124 nm. What is the volume of a unit cell in (nm)3. What is the volume of a unit cell in cm3.
Due to the forked ends on the member, consider the supports at B and C to act as pins for x-x axis buckling and as fixed supports for y-y axis buckling. Determine the factor of safety with respect to buckling about each of these axes.
A singly reinforced concrete beam has b=24in, d=12in and it is reinforced with 6#9 bars. If f'c=4ksi and fy=60ksi, determine the beam capacity, Mu = fMn.
A Biodegradable industrial wastewater (paper production) has a COD of 600 mg/L. If the BOD progression follows first-order kinetics with a rate constant = 0.10 per day, determine the BOD.
They completed the installation when the temperature was 20 degrees Celsius. When the temperature rose to 25 degrees Celsius, the rail buckled into an isosceles triangle because they had not left an expansion gap.
q1. briefly explain the purpose of the international space station and list the name of all space agencies involved in
The influent suspended solids concentration to a primary settling tank is 435mg/L. The average flow rate is 0.050m3/s. If the suspended solids removal efficiency is 60 percent, how many kilograms of suspended solids are removed
Undeveloped areas may have total PAH concentrations in the soil of 5µg/kg, while urban areas may have soil concentrations that range from 600 pg/kg to 3,000 ;kg/ kg. What is the concentration of PAHs in undeveloped areas in units of ppm?
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