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A highway reconstruction project is being undertaken to reduce crash rates. the reconstruction project involves a major realignment of the highway such that a 60mi/h design speed is attained. at one point on the highway, a 720 ft equal-tangent crest vertical curve exists. measurements show that at 3+40 stations from the PVC, the vertical curve offset is 3.5 ft. assess the adequacy of this existing curve in light of the reconstruction design speed of 60 mi/h and if the existing curve is inadequate,compute a satisfactory curve length.
The Hubert H. Humphrey Metrodome in Minneapolis opened in 1982 at a cost of $55 million. To prepare for the footings, et cetera, 3.00x105 cubic yards of dirt were removed. The Metrodome's inflatable roof covers 10.0 acres and its interior volume i..
A 30 lb uniform cylinder can roll without sliding on a 15 degree incline. A belt is attached to the rim of the cylinder, and a spring holds the cylinder at rest. If the center of the cylinder is moved 2 in
Estimate the power needed to overcome the aerodynamic drag of a person who runs at a rate of 100 yds in 10 s in still air. repeat the calculations if the race is run into a 20-mph headwind: a 20-mph tail wind.
A vehicle pulls out onto a single lane highway that has a flow rate of 280 veh/h (poisson distributed). The driver of the vehicle does not look for oncoming traffic
What is the chemical name of the first hazardous air pollutant under Title III regarding the Clean Air Act
During the recent camping trip, a curious junior engineering student (like yourself) noticed that water is being discharged from a high reservoir to a stream in the valley through a 0.3 m diameter plastic pipe. The difference in elevation between the..
Draw a meq/L bar graph forthe following analysis of groundwater, and comment onthe completeness of theanalysis (e.g. based on electroneutrality). Determine the hardnessand total alkalinity, and expressthem in units of mg/L as CaCO3. How much ofthe ha..
The 15- puzzle problem has a 4x4 grid with 15 pieces in it and one blank square. You should output the proper sequence (moving pieces up, down, left, or right into the blank square) to put the 15 pieces in order.
The 30-Mg freight car A and 15-Mg freight car B are moving toward each other with the velocities VA= 20 km/h to the right and VB= 10 km/h to the left. the spring constant on car A is k= 3MN/m.
consider a house into which radon is emitted through cracks in the basement. the total volume of the house is 650 m3
The moist unit weights and degrees of saturation of a soil are given: moist unit weight (1) = 16.62 kN/m^3, degree of saturation (1) = 50%; moist unit weight (2) = 17.71 kN/m^3, degree of saturation (2) = 75%.
a section of highway has a speed flow relationship of the form q= au^2 + bu it is known that at capacity ( which is 3100 veh/h) the space-menu speed of traffic is 28 mi/h. determine the speed when the flow is 1500 veh/h and the free flow speed.
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