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A level site consists of 3 m of clay of unit weight 19 kN/m3 and coefficient of earth pressure of 0.7.
The water table is at a depth of 1 m. Compute the effective normal stress and the shear stress acting on a plane rotated 60 degrees clockwise from the horizontal at a depth of 2.5 m in this deposit.
It may be assumed that the clay has the same density both above and below the water table.
A car collided with a telephone pole and left 20 ft skid marks on the dry pavement. Based on the damages sustained, an engineer estimated that the speed at collision was 15 mph. If the roadway had a +3% grade, calculate the speed of the car at the..
A crane is used to lift a concrete pipe weighing 10kN into place. For precision positioning, the worker at C can apply up a 800N force to cable AC. Determine the largest distance d the concrete pipe may be moved.
A soil borrow material in its natural state in the ground has a unit weight of 85 pfc. When a sample of this soil is dried in the laboratory, its dry unit weight is 72 pfc.
A container of volume 0.04 m3 contains a mixture of saturated water and saturated steam at a temperature of 250oC. The mass of the liquid present is 9 kg. Find the total mass, quality of steam, specific volume, specific enthalpy, and specific inte..
The force F=10i+12j-6k(N). (a) Determine the magnitude of the projected components of F acting parallel Fp and normal Fn to line OA. (b) Express these components Fp and Fn in Cartesian vector notation.
Air flows into the atmosphere from a nozzle and strikes a vertical plate as shown in Fig. P5.28. A horizontal force of 9 N is required to hold the plate in place. Determine the reading on the pressure gage. Assume the flow to be incompressible and fr..
The plate is submerged in a liquid is a vertical position with the parallel sides horizontal and the shorter parallel side at the top and exactly in the surface of the liquid.
Calculate the surface area (m2), diameter (m), volume (m3), and hydraulic retention time of a 3 m deep circular, primary clarifier that would remove 50 percent of suspended solids. Assume the surface overflow rate (SOR) used for design is 60 m3/m2-..
Base course aggregate has a target dry density 119.7 lb/cu ft in place. it will be laid down and compacted in a rectangular street repair area of 2000 ft x 48 ft x 6 in the aggregate in the stockpile contains 3.1% moisture.
the voltage for registering a bit of 1 on ethernet can be as low as 2.5 volts or event 1 volt.why is this so low when
What do you understand by the term durability? Compared to other considerations, how much importance should be given to durability in the design and construction of concrete structures?
For Hartford civic center roof collapse disaster. What possible corrective actions could have been implemented to prevent this failure? explain in your own words.
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