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1.A circular hatch is located in a sloping wall of a water-storage reservoir, where the wall slopes at ? = 35° to the horizontal, the radius of the hatch R is 840 mm, and the center of the hatch yC is 3 m below the water surface (measured along the sloping wall). Find the magnitude and location of the resultant hydrostatic forces on the hatch.
2.A 3000-lb car has a maximum speed (at sea level and on a level, paved surface) of 140 mi/h with 16-inch–radius wheels, a gear reduction of 3.5 to 1, and a drivetrain efficiency of 92%. It is known that at the car’s top speed the engine is producing 220 ft-lb of torque. If the car’s frontal area is 25 ft 2 , what is its drag coefficient?
A 4 X 8-ft solar collector has water circulating through it at the rate of 1.0 gallon per minute while exposed to sunlight with intensity 300 Btu/ft^2-hr.
A rectangular steel plate with thickness t=0.625 inches is subjected to normal stresses sigma x and sigma y.The strain in the x direction is known to be 0.00065 and the strain in the y direction is known to be 0.0004
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
At normal atmospheric conditions, approximately what pressure in psi must be applied to water 70 F to reduce its volume by 2 %
In oder to erect a perpendicular to a line bythe method inducate in figure the distance bc is equal to 40 ft. when the zero mark of a 100-ft tape is held a point B and
design a rectangular reinforced concrete beam (tension steel only) for the span and superimposed service loads shown. use f'c=5000psi and A615 grade 60 steel. LL=3.5 k/ft over the first 12 feet of the beam
two particles start from the same point along the same straight line and at the same instant. the first particle
Above the water table the soil mass unit weight is 16 kN/m^2. Below the water table the saturated unit weight is 19.5kN/m^2. The maximum column load is 330,000 lbs. Recommend the number and depth of borings.
What do you understand by the term preservation of timber. Briefly explain the different methods of preservation adopted.
A certain crop has a consumptive use requirement of 1.2 ac-ft of water per acre of crop land. The crop is planted on 780 acres of land. Precipitation falling during the growing season is 3.2 inches. The remainder of the 1.2 ac-ft /ac
The object ABC consists of two slender rods welded together at point B. Rod AB has a mass of 1 kg and bar BC has a mass of 2 kg. Knowing the magnitude of the angular velocity of ABC is 10 rad/s when thetha is zero.
A 400ft equal-tangent sag vertical curve has its PVC at station 200 + 00 and elevation 250ft. The initial grade is -5.0% and the final grade is +2.5%. Determine the elevation of the lowest point of the curve.
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