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A retaining wall 5 m high was designed to stabilize a
After a flood, the groundwater level, which is usually below the base of the wall, rose to the surface. Calculate the lateral force on the wall. Neglect seepage effects.
Two boards each having the same EI and length L are crossed perpendicular to each other as shown. Determine the vertical reactions at the supports. Assume the boards just touch each other before the load P is applied.
It is estimated that 60% of the annual precipitation in a basin with a drainage area of20,000 acres is evaporated. If the average annual river flow at the outlet (runoff) is 2.5 cfs, determine the annual precipitation in the basin.
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.
A well hit golf ball travels at a speed of 150 mph ( 220 ft/s) as it leaves the tee. The golf ball has a diameter of 1.70 in and weighs 0.099 lb. Assuming standard atmospheric conditions (mu, u air = 3.74 * 10^-7 lb-s/ft2 and rho = 0.00238 slug/ft3) ..
A driver traveling on a roadway decides to overtake a slow-moving truck traveling at 15 mph. The accelerating characteristic of the car is given by the following: dv/dt= 2.08-0.032v where v is the speed (ft/sec), and t is the time (sec).
The sports car has a mass of 2.3 Mg and accelerates. at 6m=s2, starting from rest. If the drag resistance on the car. due to the wind is F D = (10v) N, where v is the velocity in m/s,
Question 1: Explain the common methods to evaluate (or analyse) the bearing capacity of single piled foundation. Question 2: What are the typical methods to examine the integrity of the piled?
With air pollution control equipment in place, plot the contours for a ground level concentration that is half and ¼ of the maximum value and indicate on your plot the location of the stack and the location of the point where the maximum ground level..
The lake has a surface area of 2 acres and a mean depth of 6 feet. The flow into the river is 200 cubic feet per second (cfs). The antibiotic is degraded naturally in the lake with a first-order rate constant of 0.002 s
A horizontal water jet impinges against a vertical flat plate at 25 ft/s and splashes off the sides in the vertical plane. If a horizontal force of 350 lbf is required to hold the plate against the water stream, determine the volume flow rate of the ..
A circular footing of diameter B is expected to carry a column load with some eccentricity. The moment of inertia of the footing about its diameter is piB^4/64. What would be the maximum eccentricity
Indoor air quality is an under appreciated health hazardous. The air quality in a building can be modeled as a CSTR. Suppose that the carpet in a new office building releases formaldehyde at a rate of 10 micrograms per hour.
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