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A gray silty clay (CL) is sampled from a depth of 12.5 feet. The "moist" soil was extruded ffrom a 6-inch high brass liner with an inside diameter of 2.83 inches and weighed 777 grams.
(a) Calculate the wet unit weight in pounds per cubic feet.
(b) A small chunk of the original sample had a weight of 140.9 grams and weighed 85.2 grams after drying. Compute the water content, using the correct number of significant figures.
(c) Compute the dry density in Mg/m^3 and the dry density unit weight in kN/m^3.
Suppose X is a continuous random variable with probability density function, f(x)=4x^3 for 0
The traffic stream consists of cars, buses, and large trucks (no recreational vechicles). A weekday directional peak-hour volume of 1800 vehicles (familar users) is observed, with 700 arriving in the most congested 15 min period.
Assuming the lagoons are well mixed and that there are no losses or gains of water in the lagoon other than the sewage input, what biodegradation reaction rate coefficient (in day^-1) must be achieved for a first order reaction that governs the de..
A rigid tank contains 5kg of water at 20 degrees Celsius. A gage on the tank reads 200kPa. Determine a) the volume of the tank, b) How much would the pressure in the tank increase if the temperature were increased to 50 degrees Celsius.
Reciprocal leveling gives the following readings in feet from a setup near A: on A, 2.071; on B, 8.254, 8.259 and 8.257. At the setup near B: on B, 9.112; on A, 2.926, 2.930 and 2.927. The elevation of B is 1099.600. Compute the disclosure and ele..
An engineer in a developing country observes that his project bankaccount has grown from 1,600,000 to 1,769,279 (local currencyunits) in 20 days with no deposits or withdrawals being made.
a horizontal curve on a two-lane highway 12-ft lanes has pc at station 123 80 and pt at station 129 60. the central
For a hydrology question we are given the depth of runoff and the time. We are to make a hyetograph using this information but Im not sure how to get the intensity of the rainfall from this information
A well installed into a confined aquifer with a porosity of 0.3 and saturated thickness of 80 ft. The gravel pack requires a well screen slot width of 0.025 inches. The hydraulic conductivity of the aquifer is 60 ft/d.
The proposed highway has two tangents of bearings N 45Degrees 54' 36" E and N 1 Degree 22' 30" W. The highway design engineer, attempting to obtain the best fit for the simple circular curve join these tangents, decides that the external is to be ..
A precast concrete wall section is temporarily held by two cables as shown. Knowing the tension in cable BD is 900 N, determine the moment about point O of the force dxerted by the cable at B. Next determine the perpendicular distance from O to cable..
John Brooks a recent ME graduate from Central Michigan, bought an SUV for $30,000 with a down payment of $10,000. John had a little business on the side and did not have a girlfriend when he was at school and ehnce he was able to save the $10,000 for..
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