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A soil profile consists of 10-m-thick fi ne sand of effective size 0.15 mm above a very thick layer of clay. Groundwater level is at 3 m below the ground surface.
(a) Determine the height of capillary rise, assuming that the equivalent capillary tube diameter is 10% of the effective size and the sand surface is similar to smooth glass.
(b) Plot the distribution of vertical effective stress and pore water pressure with depth if the void ratio of the sand is 0.6 and the degree of saturation is 90%. Neglect pore air pressure.
seven hundred sixty-five meters cubed of solid waste is dumped ate the site 5 days a week. This waste is compacted to twice its delivered density. Estimate the expected life of the landfill in years.
Indoor Air quality is greatly affected by Radon, which can cause lung cancer. When we moved to Colorado, we tested the house for Radon and installed a radon mitigation system.
(SBS is often excited by tightly focused laser beams rather than by collimated beams to prevent optical damage to the windows of the cell)
A Timber power-line pole is 10 in. in diameter at its base where it is solidly embedded in concrete. The pole extends 20 ft vertically upward from its base and is subjected to a horizontal pull of 300 lb at its top.
If the concentration of glucose in plasma is 5 mM, and theintracellular glucose concentration is negligible (i.e. 0 mM), whatis the rate of glucose diffusion (J) into the cell? Assume that thethickness of the plasma membrane is 10 nm.
The influent suspended solids concentration to a primary settling tank is 435mg/L. The average flow rate is 0.050m3/s. If the suspended solids removal efficiency is 60 percent, how many kilograms of suspended solids are removed
Stormwater controls are typically designed by civil engineers. Stormwater is collected in pipes below the ground and routed to nearby surface water.
Compute the required layout distance if the Temperature is 13 degrees celcius, Tape Length is 29.990 m, and the required Layout distance is 500.000 m.
The company can either buy a single 200m^3 ideal plug flow tank, or three 80m^3 completely mixed tanks that operate in series. the cost is essentially the same. The pollutant is removed as a part of a first order reaction with a rate constant value..
The compression ratio of the engine is 9.5.1. If the compression process is isentropic, determine the required work input for this compression process, in kJ/kg of mixture.
Determine the minimum power input required. Also, determine the minimum height to which the brackish water must be pumped if fresh water is to be obtained by reverse osmosis using semipermeable membranes.
Using the data available in Appendix B, determine the slope of the line when the plate is subjected to a 45-kip centric axial load.
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