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All the members of the braced frame shown in Figure S11.3are of uniform section. Set up the stiffness matrix for the frame and hence determine the value of W at which elastic instability occurs. The loading on the members may be replaced by equivalent static loading at the joints.
A culvert is to be constructed in a bed of sand (e = 0.5) for drainage purposes. The foof of the culvert will be located 3 m below ground surface. Currently the groundwater level is at ground surface.
Water with a static pressure of 1.96kN/M2 flows through an 800 mm diameter pipe. A pitot tube pressure gage in this pipe reads a pressure of 5.88 kN/M2. How do you determine the volume flow rate (Q) of the water? (Q = 1.40 M^3/sec, V=2.79 M/sec)
the block has a mass of 150 kg and rests on a surface for which the coefficients of static and kinetic friction are 0.5
A satellite is launched 600 km from the surface of the earth, with an initial velocity of 8333.3 m./s, acting parallel to the tangent of the surface of the earth.
Determine the total entropy change for the mixing process per unit mass of mixture.
The slabs are to be built integrally with the end supports, which are spandrel beams. fy = 60,000 psi, fc' = 4000psi normal-weight concrete. Clear spans are 15 feet, 18 feet and 15 feet. with the longitudal span of 38 feet.
To float a 160 pound man using helium balloons (assume 0.52 cubic feet per inflated balloon). How many balloons would it take? Assume density of air is 1.29 kg/cubic meter and the density of helium is 0.179 kg/cubic meter.
A household uses 10 therms of natural gas per month in a gas furnace for heating at a cost of $1.00/therm. For an electric heating system the cost of electricity is $0.10/kwh. Compare the cost of the electric heater to deliver the same energy as t..
The bottom of a rectangular flume is 5mabove reference level. The depth of the water in the flume is 3m.The average velocity is 1.7 m/s. Compute the total hydraulic energyat the surface of the water and at the bottom of the flume.
a horizontal curve was designed for a four-lane highway for adequate ssd. lane widths are 12 feet and the
On a single graph, plot the PDFs if E is assumed to be normally, lognormally, and gamma distributed. Plot the PDFs for E values between 10,000 and 50,000 kips/in2. Make sure to label the axes and use a legend to label the curves.
A cross section of a cottage, 20 ft wide, is an isosceles triangle. If the slope of a side is 1.75 and there is a second floor 8 ft above the ground floor, what isthe width of the second floor?
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