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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 aluminum bar has an electrical coil imbedded in it, so that known amounts of heat can be transferred to it. Aluminum has a specific gravity of 2.70 and a specific internal energy given by the formulaU (kJ/kg)=0.94T(C).
In a certain chemical plant, a closed tank contains ethyl alcohol to a depth of 50 ft. Air at a pressure of 25 psi fills the gap at the top of the tank. Determine the pressure at a closed valve attached to the tank 10 ft above its bottom.
What is the pH value of water containing 0.005 M of an acid with a acid dissociation constant of 0.001 M. The dissociation of the acid in water can be represented as: HA H+ + A-
A 1-inch elevator cable is 1000 feet long. The modulus of elasticity for the cable is 25,000,000 psi. Determine the total elongation of the cable due to a load of 20,000 pounds.
What superelevation rate would you recommend for a roadway with a design speed of 100 km/hr and a radius of curvature of 500 m? Assume f = 0.11.
shaped nozzle such that the velocity along the center line of the flow increased from 1.5 m / s to 15 m / s at a distance of 37.5 m. specify the amount of convective acceleration at the beginning and end of the range.
Determine whether these conditions are true or false.
Could all the people in china hold back the water behind the three gorges dam?
How do you propose to do this at the above treatment plant and estimate the head loss both immediately after backwash and 10 hours later, if the same water is applied at a rate of 2 L/s.m 2 .
If a car engine is turning at 4000 rpm, the transmission gear ratio is 3:1 and the final drive ratio is 4:1. (a) what is the speed in rpm of the car wheels and (b) the vehicle speed if the tire radius is 8 inches
ABC is a triangular tract of land. The 1.5 tract DEFG is to be subdivided. AE is 480ft and DC is 350 ft. Determine the lengths of DG and CB. (Note 1 acre= 43,560 f^2)
For carbon tetrachloride, the boiling point constant is 5.03°C · kg/mol, and the boiling point of pure carbon tetrachloride is 76.50°C.
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