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Drawdown at a 0.20-m-diameter, fully penetrating well, which has been pumping at the rate of 1000 m^3/day for a long enough time that steady-state conditions have been reached, is determined to be 0.70 m. The aquifer is unconfined and 10.0m thick. An observation well 10 m away has been drawn down by 0.20 m. Determine the hydraulic conductivity of the aquifer?
A pump has the following pump curve is pumping at a rate of 5000gpm. Calculate (a) the total head the pump is pumping against. (b) brake horsepower required to drive the pump.
A motorist is traveling on a curved section of highway of radius 2500ft at the speed of 60 mi/hr. the motorist suddenly applies the brakes, causing the automobile to slow down at a constant rate. knowing that after 8 sec the speed has been reduced to..
An overnight shipment contains 2 bottles of Aspirin and 3 bottles of thyroid tablets. A second shipment contains 3 bottle of aspirin, 2 bottles of thyroid and 1 bottle of laxative tablets. If one bottle is randomly chosen from each of the two shipmen..
Calculate the uniform flow rate in an earth-lined (n = 0.020) trapezoidal canal having bottom width 3 m, sides sloping 1V : 2H, laid on a slope of 0.0001, and having depth of 1.8 m.
Given the total dissolved solids in a brine is 20,500 ppm, compute the resisitivity at a reservoir depth of 8,000 feet.
One issue is to calculate the "pooled" variance and "pooled" standard deviation. Since we expect that the variances of the improvement scores by both groups could be a bit different, we'd want an overall value that reflects the variance of both gr..
A two story school has interior columns that are spaced 15 ft apartin two perpendicular directions. If the loading on the flat roof isestimated to be 20 lb/ft^2 determine the reduced live loadsupported by a typical interior column at
Part B (Assignment): by trial and error, find the angle that will give the minimum force F to make a basket (hint: try 52 degrees)The trajectory of the ball will make a basket when x = L and y = Hb
For unidirectional carbon/epoxy tape at a 60% fiber volume fraction, calculate E11 and E22. Given Ef= 211 GPa and Em =10 GPa. Calculate the fiber weight fraction. Given pf=1.95 g/cm3 and pm =1.3 g/cm3.
Given: acceration = -k*sqrt(v) and k is a cosntant when x=0, v=81 m/s, t=0 when x=18 m, v=436 m/s determine: a) velocity of particle when x=20 m b) the time required for the particle to come to rest
A cable is made of two strands of different materials, A and B, and cross sections as follows: For material A, K = 60, 000 psi, n = 0.6, Ao = 0.6 in2 For material B, K = 30, 000 psi, n = 0.5, Ao = 0.3 in2
If the coefficient of static friction between the man's shoes and the pole is u=0.6, Determine the minimum coefficient of static friction required between the belt and the pole at A in order to support the man.
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