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A 3% uphill grade is immediately followed by a 2% downhill grade along a proposed highway alignment. For a design speed of 55 mph, find the minimum length of a vertical curve that satisfies the passing sight distance requirement. Use equations and show all calculations. Based on the result, would you restrict the passing maneuver and redesign the curve appropriately?
The initial velocity of a 15-lb block is given as mv1=15i+15j (ft/s). A force defined by F=250i-250tj (lb) acts on the particle from time t=0 to time t=0.3 s for a total duration of 0.3 s.
A soil is to be compacted on a site and it is expected that the soil contains a high percentage of montmorillonite. Briefly explain the working principles of two tests that can be carried out to ascertain the presence of montmorillonite in the soil.
For the data of Problem 26.19, calculate slope intercepts and determine the end area by the coordinate method.
You are designing a highway to AASHTO guidelines on a rolling terrain where the design speed will be 60 mi/h. at one section, a +1.0% grade and a -3.0% grade must be connected with an equal-tangent vertical curve.
A circular beam length 36 inches and diameter 1 inch is supported on the left end by a pin joint and the right end with a roller. The beam is under axial tension with forces of 1000 lbs out of each end.
A rectangular tank 2.0m wide, 4m long, and 2m deep contains water to a depth of 1.0m It is accelerated horizontally at 3m/s^2 in the x direction.
Treating the tank of water, the house, and the surroundings as heat reservoirs, determine the minimum amount of heat that must be extracted from the tank of water by any device built to accomplish the required cooling of the house. No other source..
A new sports car has a drag coefficient of 0.30 and a frontal area of 21 ft 2 , and is traveling at 110 mi/h.How much power is required to overcome aerodynamic drag if ? = 0.002378 slugs/feet3 ?
Determine the location e of the shear center, point O , for the thin-walled member having the cross section shown. The member segments have the same thickness t .
The first pipe of 0.4-m diameter is 500 m long, the second pipe 600 m long, size 0.3 m, and the last pipe is 500 m long of diameter 0.2 m. If the elevation difference between two reservoirs is 30 m, calculate equivalent pipe size and flow in the p..
You are given five data points, yi = f(xi), where i ranges from -2 to 2, and where xi+1 ? xi = ?x is a constant. You are interested in computing the first and second derivative of f at x0.
If the head in the Jordan has been pumped down by 100 ft in recent times, how much water in cubic feet has been pumped out of storage for an area of 100 sq. mi.?
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