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A laboratory consolidation test was performed on a clayey soil specimen, which was drained on both top and bottom. The time for 50% consolidation was 6.2 minutes, and the specimen's thickness at 50% consolidation was 0.740 in. Two points on the field consolidation line have coordinates (p1, e1) and (p2, e2) of (1000 psf, 1.167) and (2000 psf, 1.108), respectively. Find the coefficient of permeability of the clay for the given loading range. Please show work.
The initial waste concentration is 200 mg/l and the following constants have been determined: Ks=50 mg/l; k=5.0 days^-1; kd=0.06 days^-1; Y=0.60 Determine the minimum mean cell residence time, the mean cell residence time you would set for design.
A soil initially has a degree of saturation of 95% and a unit weight of 129 lb/ft3. It is then placed in an oven and dried. After removal from the oven, its unit weight is 109 lb/ft3. Compute the void ratio, porosity
you are a project manager on site where work for 3k.m. long tunnel has been undertaken. the site is remote and takes
A 12inx1inx3in ASTM 36 steel bar is loaded with an axial load of 90,000lbs and a transversal load of 288,000lbs (force applied perpendicular to the 1in side) The proportionality limit is 34,000psi.
A flat bar of cross section 20mm by 70mm elongates 4.0mm in a length of 2.0m as a result of axial load. If the elastic modulus is 199x106 kN/m2 and Poisson's ratio is 0.25 for the material, find the axial load and the total change in each cross secti..
At what speed the rule of 25 feet separation between two cars is safe?
Create a function called [polygon] that draws a polygon in a polar plot. Your function should have a single input paramter - the number of sides.
a 110 cubic centimeter volume of clay weighs 145 g in its undisturbed state. when the clay specimen is dried it weighs 110.5g. what is the natural water content of the clay, and what is the degree of saturation Assume Gs=2.70
Refrigerant 134a enters the compressor of a vapor compression heat pump at 15 psi and 0 °F and is compressed to 160 psi and 160 °F. Liquid enters the expansion valve at 160 psi and 95 °F. At the valve exit the pressure is 15 psi.
If the discharge is 500cfs, what power output may be expected from the turbine? Assume that the turbine efficiency is 90% and that the overall head loss is 1.5V 2/2g, where V is the velocity in the 7 ft penstock. Assume a=1.0 at all locations.
Two forces are applied to the vertical post. Determine the force and couple at O equivalent to the two forces.
Mike and Susan hope to retire a few years early, they decided to pay closer attention to the predicted amount of retirement benefits and do some analyses on the numbers.
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