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Question 1
Which of the two walls in Figure As 1 gives the large horizontal force? Show your calculations).
Question 2
The drainage system of a cantilever wall shown in Figure As 2 became blocked after a heavy rainstorm and the groundwater level, which was originally below the base, rose to1.5 (m) below the surface. Determine the stability of the wall before and after the rainfall. Neglect seepage effects.
Workers plan to apply a reflective coating of paint to one surface of an equilateral triangular shaped highway sign. How many square inches of coating need to be applied to the sign if one side of the triangle is 12 inches
The scholarship will provide a student with an annual stipend of $2500 for each of 4 years (freshman through senior), plus an additional $5000 during the senior year to cover entertainment expenses.
The efficiency of the engines of subsonic airplanes depends on air pressure and usually is maximum near about 36,000 ft. Find the air pressure y(x) at this height. The rate of change y(x) is proportional to the pressure
A sample of moist soil has a volume of 40.5 cc mass weight of 59.2 gms. After drying it has a mass weight of 48.3 grams. The specific gravity of the solids are 2.68.
A 4 meter long steel plate with a rectangular cross section (10mm x 50mm) is resting on a frictionless surface under the sun. The plate temperature is measured to be at 40 degrees Celsius.
A bridge has cylindrical piers 1 m in diameter and spaced 15 m apart. Downstream of the bridge where the flow disturbance from the piers is no longer present, the flow depth is 2.9 m and the mean velocity is 2.5 m/s.
A survey of similar facilities indicates that one parking space must be provided for every one employee and that 60% of all automobiles driven to work are compact automobiles, six percent of the spaces should be allocated for the handicapped.
Granny viola has been saving money in the Bread and Butter mutual fund for 15 years . She has been a steady depositor over those years and has a pattern of putting $100 into the account every 3 months.
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.
Estimate the power in watts that can be produced by the turbine. Hint: In a time interval Dt,the amount of mass that flows through the rotor is Dm=mDt ,and the corresponding amount of kinetic energy in this flow is (Dm*V square/2)
What is the maximum weight that can be suspended on a 16 Kg poll, 3/5 from the end. The maximum tension of the 30 degree guy-wire is 1500 N. Find the horizontal and vertical forces exerted on the poll by the hinge.
A 100% saturated soil has a void ratio of 1.33 and water content of 48%. Find the unit weight of soil in lb/ft^3 and specific gravity of solids
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