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Based on given soil data. Soil is a loam with grain the #200sieve. The Liquid Limit = 29, Plastic Limit = 24, friction angleφ = 25 degree, cohesion c = 0.21 tons/sf, unit weight γ=124lb/ft3.
Assumptions: No eccentric or inclined loading. Concretecompressive strength(f'c)=3,000 psi & flexural strength ofsteel, (fs)= 20,000 psi, FS=safety factor= 3, strip footing = 2,200lb/ft2, depth of footing 12"
What is the dimension of a strip footing required to supportthe maximum load to prevent capacity failure, and the requiredsteel in the footing to support tensile stresses?
Estimate the effective friction angle for the sand (assume c' = 0). Calculate the sand's shear strength (τf) on a horizontal plane at depths of the 20 ft and 50 ft.
An object weighs 289.2N in air and 186.9N in oil of specific gravity is 0.75 find its volume and relative denesity
If given a brittle material with a known tensile strength, Sut, and a known compressive strength, Suc, use the four main fracture criteria (MNSC, BCM, MM, and MIIM) to determine the shear stress, tau, in terms of the material properties Sut and Su..
when their spacing is h, what is the radial component of convective acceleration at the section just inside the edge of the disk (section A) in terms of D, V, and h. assume uniform velocity distribution across the section.
In bridge widening projects, the method of stitching is normally employed for connecting existing deck to the new deck. What are the problems associated with this method in terms of shrinkage of concrete
a model rocket is launched straight upward. its altitude y as a function of time is given by y bt -ct2 where b 82 ms
During frequent braking under race conditions the disk brake rotors on the car described above reach a temperature of 500C. These disk brakes rely on forced convection to cool them. The dimensions of each disk rotor are: outer radius 130mm
Crates A and B weigh 300 lb and 110 lb, respectively. They are connected together with a cable and placed on the inclined plane. If the angle θ is gradually increased, determine when the crates begin to slide.
Consider the plane polar coordinate velocity distribution V_r=C/r, V_0=K/r, V_z=0, where C and K are constants (a) determine if the equation of continuity is satisfied (b) by sketching some velocity vector directions
Two smooth circular cylinders of weight w=500N and radius r=200mm are connected at their centres by a string AB of length 600mm and rest upon a horizontal plane.
A typical propane tank that we use for barbeque initially contains a pressure of 10 psi. The pressure is low, so we take it to the local store to fill the tank with more propane. After filling,the pressure is 100 psi.
Lab studies have shown that the rate constant associated with the process are as follows: k = 0.95 mg COD/mg VSS-day; Y = 0.48 mg VSS/ mg COD, half-saturation K = 85 mg COD/L; ke = 0.07 d-1.
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