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In a constant-head permeability test a sample of soil12 cm long and 6 cm in diameter discharged at 1.5*10^-3 of water in 10 minutes. The head difference in two piezometers A and B located at 1 cm and 11 cm, respectively, from the bottom of the sample is 2 cm. Determine the hydraulic conductivity of the soil. What is the soil type tested?
A 55.0 kg crate rests on a level floor at a shipping dock. What horizontal pushing force is required to just start the crate moving
Three infinite nonconducting sheets, with uniform positive surface charge densities, sigma, 2sigma, and 3sigma, are arranged to be parallel. What is their order, from left to right
A gravity thickener receives 33.000 Lpd of wastewater sludge and increases the solids content from 3.0% to 7.0% with 90% solids recovery. Calculate the volume of thickened sludge.
In this assignment youare required to use PHP program to connect to the XAMPP web server. You will then create a database which will include tables with records.
The density of gasoline at 0 degrees celsius is 0.68E3 kg/m^3. What is the density on a hot day when the temperature is 35 degrees celsius
how to use the bisection method on the van der waals equation Problem 1 (15 Points) The van der Waals equation gives a relationship between the pressure P (in atm.), volume V (in L), and temperature T (in K) for a real gas
The flow of water over a weir, can be computed by Q=5.35LH^(3/2), where Q is the volume low rate of water in cubic feet per second, L is the length of weir in feet, and H is the height of water over the weir in feet.
A 1450 N uniform boom is supported by a cable as shown. The boom is pivoted at the bottom, and a 1270 N object hangs from its end. Find the tension in the cable holding up the boom
Each employee has the following deductions taken from his gross pay: Federal Income Tax: 15% State Tax: 3.5% Social Security + Medicare Tax: 8.5% Health Insurance $75
A metal sphere has a charge of +6.9uc. What is the net charge after 7.6x10^13 electrons have been placed on it
One blend that is gaining popularity is E85, which is 85% ethanol and 15% gasoline. E85 is 80% cleaner burning than gasoline alone, and it reduces our dependency on foreign oil. But a flex-fueled car costs $1,000 more than a conventional gasoline-..
The flywheel rotates with an angular velocity of omega = (4*theta^(1/2)) , where theta is in radians. Determine the time it takes to achieve an angular velocity of omega = 190 rad/s . When t = 0, theta = 1 rad .
Beam Deflection Solution, Derive an expression for the deflection due to shear for a cantilever beam of constant rectangular cross section, under action of a point load, P at free end.
A constant head permeability test was conducted on a clean sand sample. The diameter and length of the test specimen were 10 cm and 12 cm respectively.
determine the highest real root of f(x)= 0.95x^3 - 5.9x^2 +10.9x-6: (a)graphically. (b) using the newton raphson method(three iterations, xi= 3.5). (c) using the secant method(three iterations, xi-1= 2.5 and xi= 3.5).
A lagoon with a volume of 1200 m^3 has been receiving a steady flow of a conservative waste at a rate of 100m^3/day for a long enough time to assume that steady-state conditions apply. The waste entering the lagoon has a concentration of 10mg/L.
An unconfined, gravel-sand aquifer has a porosity of 0.23, and a hydraulic conductivity of 1000 m/day. Two monitoring wells are 260 m apart, and the difference in their water levels is 0.3 m.
A small chunk of the original sample had a wet weight of 140.9 grams and weighed 85.2 grams after drying. Compute the water content, using the correct number of significant figures.
a. Determine the shear and moment diagram. b. Calculate the maximum normal stress on the top of the beam, on the bottom of the beam and indicate in terms of x its location.
At a specified point on a highway, vehicles are known to arrive according to a poisson process. Vehicles are counted in 20 second intervals, and vehicle counts are taken in 120 of these time intervals.
To what maximum angle, measured from vertical, does the rod (with the attached ball of clay) rotate?
We have a batch reactor ( r = -k1) with volume of V1. The concentration entering the batch reactor is Co. The batch reactor is operated from t =0 to t = t1. After that the water exits the batch reactor and enters a PFR (r = -k2C) wi..
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