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Using a safety factor of 2.00 and neglecting the pile dead weight, find the length of a 1' diameter circular concrete pile required to take a design load of 50 kips in a soil composed of two layers. The top, 20 foot layer is a medium clay with an adhesion factor of 0.630 kips per square foot and a bearing capacity of 6.5 kips per square foot. The second layer of unknow depth is a stiff clay with an adhesion factor of 1.12 kips per square foot and a bearing capacity of 18.0 kips per square foot. Find the total length(depth) of the pile.
A 2,150 lb car is traveling at sea level at a constant speed. Its engine is running at 4500 rev/min and is producing 150 ft-lb of torque. It has a driveline efficiency of 90%, a driveline slippage of 2%, 15-inch radius wheels and an overall gear r..
the tank contains water to depth of 2m and oil (sg=.8) on top of the water to a depth of 1m detrermine the magnitude and location of the resultant fluild force acting on one end of the tank
A concrete mix with a 3in slump, w/c ratio of .5, and sand with a fineness modulus of 2.4 contains 1700lb/yd3 of coarse aggregate. Compute the required weight of coarse aggregate per cubic yard.
acceleration of a particle traveling along straight line is a=(1/5)s^(1/2), s is in m, if v=0, s=3 when t=0 determine the particles velocity at s=6
A venturi water meter with a throatof 6 in registers a presssure head difference of 128 in of water between the inlet and throat. calculate the quantity of flowthrough the meter using a discharge coefficient of.93.
Determine the total work done on the car by the towing forcein this distance if the rolling frictional force between the carand the track is 80lb.
A steady-flow compressor is used to compress helium from 15 psia and 70oF at the inlet to 200 psia and 600oF at the outlet. The outlet area and velocity are 0.01 ft2 and 10 ft/s
The maximum flexural stress on a transverse cross section of a beam2" x 4" with a rectangular cross section must not exceed 8 ksi.Determine the maximum resisting moment Mr that the beamcan support if the neutral axis is
above a peninsula of land. the length of the box is 25 km, its width is 80 km, and a radiation inversion restricts mixing to 25 m. Wind is blowing clean air into the long dimention of the box at 0.8 m/s.
The following data are obtained for a particular reach of the Provo river in Utah: cross sectional area A = 183 ft2, free surface width = 55 ft, average depth = 3.3 ft, Rh = 3.32 ft, V = 6.56 ft/s, length of the reach = 116 ft, and elevation drop ..
The temperature was 200C, and the void ratio (e) of the soil was 0.43. Calculate the "Coefficient of Permeability" in "centimeters per second" (Given, k = (QL)÷(A Δh t)).
if the sludge concentration in the return sludge line from the secondary clarifier were the same as the MLVSS concentration.WOULD recycle of return sludge increase the sludge age why
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