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Two pumping wells, A and B, are 100m apart. They each completely penetrate a homogeneous, confined aquifer, and pump at exactly the same rate, 5m^3/day. Prior to pumping, the piezometric head was 30m, the same as the thickness of the aquifer. An observation well that is located 50m from well B and 150m from Well A, records a drawdown of 5m. Assume steady state conditions and a radius of influence of 100m for each well. Make a sketch
a.) What is the hydraulic conductivity?
b.)What is the drawdown halfway between well A and well B?
A 3-m-thick, wide fill (γ = 19 kN/m3) is placed over a soil profile consisting of 6 m of plastic clay (γ = 16 kN/m3, e0, = 1.7, Cc, = 1.2, OCR= 1.4, Cr/Cc, = 0.15) over 10 m of organic silt
To avoid boredom, employees are assigned all three tasks at different times during the shift. Each employee has to work at least half an hour at each station during a five hour shift. How much time should each employee spend at each in order to maxim..
one gallon of paint(volume=3.78 x 10^ -3) covers an area of 25 m^2. what is the thickness in mm. of the paint on the wall
three bars each made of different materials are connected together and placed between two walls when temperature is t1
The volume of the bend is 0.1 m3. The steel of the bend material weighs 51 kg. Neglecting friction or other losses in the pipe, what is the tension force in the bolts holding the bend in place
an ideal reheat rankine cycle with water as the working fluid operates the inlet of the high pressure turbine at 800kpa
The door of an oven has 27.9lb weight that acts vertically through point D. The door is supported by a hinge at point A and two springs that are symmetrically located on each side of the door.
A water storage tank located on a larege dairy farm has a storage capacity of 0.1 ML. The average rate of water consumption from this tank is 6.25 kL per day, every day. The farmer refills the tank (overnight) every 14 days
An undistured soil sample has a dry unit wieght of 112 pcf with specific gravity of solids equal to 2.68. a. What is the void ratio of the sample b. What is the porosity of the sample
The solids in a specimen have a specific gravity of 2.65. If the oven-dry mass of the specimen is 25 kg, what is the volume of the solids in it
Compute departures and latitudes, linear misclosure, and relative precision for a five-sided, closed traverse. It is given that the aziumuth of AB is 74 degrees 31 minutes, 17 seconds, A = 105 degrees 13 minutes 14 seconds B = 92
Assume a cross-sectional medial length of 32 in. (no stretching of the sheet due to bending). If the maximum shear stress must be limited to 19 ksi, determine the maximum torque that can be carried by the hollow section
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