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The two-force and three-force principles where appropriate. Neglect weights of members unless specified otherwise. The pump oiler is operated by pressing on the handle at D, causing the plunger to raise and force out the oil. Determine the distance d of link BC so that the horizontal pin reaction at A is zero.
If the pH of the water is raised to 8.5, what is the equilibrium concentration of the chromium (III) in moles/L? (d) What weight (in pounds) of precipitate is formed if groundwater containing 19,000 mg/L chromium is treated as described in part (c) a..
Compute the coefficient of permeability of the soil in cm/s, m/s, and ft/d. What was the probable elassiticauon of the sod tested? (After A. Casagrande.)
Theis Method plot drawdown vs. time for 4 observation wells, 5, 50, 100, 500 meters from well pumping at constant rate of 300 m^3/day in sandy confined aquifer. b=12 m, K=25 m/day, and S=10^-4.
A cylindrical volume of soil contaminated with trichloroethylene (TCE). It is about 2.5 m deep and about 4.0 m in diameter. The porosity of the soil is approximately 0.25.
Design a concrete column of 14 ft high to support a dead load of 80 kips and a live load of 200 kips. f'c= 6,000 psi fy= 60,000 psi
Similar to Problem 27.19, except the air base is 6940 ft, the flying height above mean sea level is 12,520 ft, the x and y photo coordinates on the left photo are xa = 37.98 mm, ya = 50.45 mm, xb = 24.60 mm, and yb = -46.89 mm, and the x photo coo..
Using the Internet or any other available sources, define in your own words the meaning of “inertial reference frame” and “apparent force” associated with non-inertial reference frame. Give examples of apparent forces.
A solution contains 300 mg/L of acetic acid. Determine the pH of the solution if an equivalent amount of sodium hydroxide (NaOH) is added to it. Determine the concentration of NaOH required (in mg/L).
The specification for a particular application calls for the blocks to have a mean compressive strength greater than 1350 kPa. A sample of 100 blocks is produced and tested.
A simple curve has a central angle of 42 degreess. A point Y is located 24m from the vertex and has a perpendicular distance of 3.00m from the back tangent.
A tension of 5 lb is maintained in a tape as it passes through the support system shown. Knowing that the radius of each pulley is 0.4 in.,
Apiece of corroded steel plate was found in a submerged ocean vessel. it was estimated that the original area of the plate was 62.5cm 2 and approximately 2.8k had corroded away during the submersion.
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