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Solve equation (10.59) for a constant normal load on the earth's surface using a combination of Laplace and Fourier transforms to reduce the partial differential equation to an algebraic equation. Note that in order to extend the domain of z to -∞ to ∞ to make use of the Fourier transform, and to match the boundary condition for the vertical stress on the plane z = 0, we need to take σzz(z = 0, t) = -2F H(t)[H(z)-1], as in appendix B. Following the procedures there leads to the result given in equation (10.65).
Compute the nodal equivalent force vector that corresponds to the particular variation of the tractions - find the displacement of the midpoint of the rod shown in the Figure. Assume A=E=1 and body force per unit volume g=1. Discuss the solution.
A 3000 lb vehicle has a drag coefficient of 0.32 and a frontal area of 30 ft2. What is the minimum tractive effort required for this vehicle to maintain a 65 mph speed on a 2% upgrade through an air density of 0.002045 slugs/ft3
What is the maximum population that can be served by a 900 mm diameter main sewer constructed on minimum grade? If sewage flow in the pipe never exceeds a depth of 600 mm, estimate the actual population contributing flow to the main.
Is there certain type of compaction equipment you would especially recommend for this job? Why?
Find the area of steel reinforcement required for a concrete T-beam for the following data; f'c = 3 ksi, fy=50 ksi,d=28 in, t= 6 in., bw= 16 in., bf= 60 in., and the section sustains a factored bending moment of Mu=360 kip ft
if the enginer is mounted floatiing on very weak spring, what is the amplitude of the vertical vibration of the engine? (b) if the engine is mounted solidly on a rigid foundation, what is the alternating force amplitude transmitted? Assume the con..
Northern Tundra Telephone (NIT) has received a contract to install emergency phones along a new 100-mile section of the Snow-Moose Turnpike. Fifty emergency phone systems will be installed about 2 miles apart
Determine the force P required to move the wedge under the post. The coefficient of static friction between all surfaces is 0.25. The applied force F is 200 lbs and the angle alpha is 15 degrees.
Soda Ash and QuickLime, A lime-soda softening plant treats a flow of 150 MGD, and the water has 86mg/l Ca2+, 35 mg/L Mg2+, 299 mg/L HCO3- and 6mg/l CO2.
Compute the normal depth in a rectangular wooden flume with base width of 2 ft, roughness of 0.020, and slope of 0.01 ft/ft if the flowrate is 3.5 CFS.
For two 0.2 m long rotating concentric cylinders, the velocity distribution is given by u(r) = 0.4/r - 1000r m/s. If the diameters are 2 cm and 4 cm, respectively, calculate the fluid viscosity if the torque on the inner cylinder is measured to be 0...
If friction between the cars and the rails is neglected, what were the magnitude and the direction of the velecity of the cars after the collision?
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