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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).
The floating platform shown is supported at each corner by a hollow sealed cylinder 1 m in diameter. The platform itself weights 30kN in air, and each cylinder weighs 1.0 kN per meter of length
Determine the normal force, shear force and bending moment at point D for the 3-pinned - Determine the deflection at C using the strain energy method - determine the deflection at the free end C for the beam.
A fitness club in Virginia is planning a building addition for an indoor pool. An architact has recomeded using ACQ pressure treated Eastern white pine No. 1 joists hung from glulam beams with galvanived fasteners/connectors
Assume that the upstream pressure is 60 psi and that the flow is isothermal at 68F, determine the maximum possible mass flow rate of air for which the assumption of incompressible flow is a vaild engineering approximation.
Freight train A passes through Petticoat Junction, a node where twosingle track lines connect, at 6:50 AM, traveling at 40 MPH, with50 cars that are 70 feet nose to nose
Show that the head loss in a hydraulic jump formed in a rectangular channel may be expressed as : change in E =(y2 - y1)^3/(4y1*y2) where y1 and y2 are depth of flow before and after jump.
Show that in a code of M code words satisfying the Kraft inequality with equality, the maximum length is at most M - 1. Explain why this ensures that the number of distinct such codes is finite.
Three cables (AD, BD and CD) are used to hang a circular disc. The radius of the disc is 50 cm and it has a weight of 500 N. Draw a free body diagram and determine the force in each of the cables, AD, BD and CD using vector analysis. Write these f..
a soil sample is obtained by pushing a 16 in long tube into the side of a pit. the tube has an inside diameter of 3 in. and weighs 1.8 lb. The soil in the tube is trimmed so that its ends are flush with the ends of the tube.
Show calculations to support your answer. Estimate the undrained shear strength under plane strain.
To avoid the salinization of soil in a farming area, parallel drainage canals are to be installed to maintain the water table at a depth of at least 4m below the ground surface. It is thought that no evapo-transpiration would occur below that depth.
What is the weight of a 10-ft3 tank of oxygen if the oxygen is pressurized to 400 psia, the tank itself weighs 100 lbf, and thetemperature is 700F?
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