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1.Point loads of magnitude 2000, 4000, and 6000 lb act at A, B, and C, respectively. (Figure 10.36). Determine the increase in vertical stress at a depth of 10 ft below point D. Use Boussinesq's equation.
2.A gunite concrete trapezoidal channel (n = 0.019) with 1:2 side slopes, as ilustrated below, conveys 60 m3/s on a slope of 0.0005. Compute the depth of flow.
3.A rod of copper alloy 50 inches long has a modulus of elasticity of 16*10^7 psi. If the maximum allowable elongation is 0.05 in, determine the diameter of the rod if it has to be subjected to a load of 3200 lb.
A flow of 0.1 cum/s flows down in a rectangular channel of width of 0.6m and having and adjustable bottom slope. If chezys constant C is 56, determine the bottom slope necessary for uniform flow with a depth of flow 0.3m.
You have been assigned to design a heat exchanger to cool a gaseous process stream in a chemical plant. The stream flow at 20 kg/s and enters at 431 oK, It has a heat capacity of 3.45 J/g-oC , and needs to be cooled to 402 oK.
Consider a system that consists of 4 devices. The probabilities of failure for each of the devices are, respectively: 10%, 25%, 20%, and 30%. (a) If these components were in series, what is the probability that the system operates
A 27ft beam has a uniform load of 6kip/ft. along its entire length. From left to right x=0ft to x=27ft. At x=0 ft it is pinned and at x=18 ft there is a roller. So, the 9 ft end section is cantilevered.
A river upstream of a brdige corssing is 3 meters deep and has an average velocity of 3 m/s. The bridge piers cause a constriction in the width of the flow by 12%.
An outdoor track is 125m in diameter. A runner increases her speed at a constant rate from 4 to 7 m/s over a distance of 30m. Determine the magnitude of the total acceleration of the runner 2 s after she begins to increase her speed.
At a plant making MSG (monosodium glutamate) for use inAsian cooking the waste stream discharged to a nearby streamcontains 100 mg of glutamic acid(C5H9O4N) per liter.
1. the maximum eight-hour average concentration of carbon monoxide co in an urban area is measured to be 15 ppm. the
Why do owners prefer the design-build form of contracts when many of them know they can obtain better quality construction using other forms. What are the stages at which the designer will schedule design reviews.
If the detention storage on the paved section is increasing at the rate of 60 m3/hr, what is the runoff rate into the inlet grate?
a 6 inch soil cement base and an 8 inch crushed stone subbase, which truck will cause more pavement damage?(assume drainage coefficients are 1.0)
A hydraulic jump occurs in an rectangular channel 2.3 m wide when the discharge is 2.5 m^3/s. If the upstream depth is 0.25 m calculate the depth downstream of the jump and the energy loss in the jump.
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