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A tangent section of highway has a -1.0% grade and ends at station 0+1450and elevation 25m. It must be connected to another section of highway that has a -1% grade and that begins at station 1+345 and elevation 40m. The connecting alignment should consist of a sag curve, and be designed for a speed of 80km/h. What is the lowest grade possible for the constant-grade section that will complete this alignment?
Calculate the volume of a cylinder that contains 60 lbm of carbon dioxide at 230°F and 23 psig pressure. Assume atmospheric pressure to be 14.7 psia.^4
A distance of 200 ft must be taped in a manner to ensure a standard deviation smaller than ± 0.03 ft. What must be the standard deviation per 100 ft tape length to achieve the desired precision?
If you were asked to perform an excavation contract competitively with limited data, what type of contract would you want and why?
A water line to a home is usually 3⁄4" copper tube. What is the flow rate that can be delivered and still maintain laminar flow in the tube?
If A and B are both made of wood and are 3/8 in thick, determine to the nearest ¼ in the smallest dimension h of the support so that the average shear stress does not exceed \tauallow = 300 psi.
where u(t) is in vehicles per minute and t is in minutes. When will the queue clear?
The motor in the unit runs at 300 rpm and produces an unbalanced force of 60 lb at this speed. Neglect weight of the beams and assume 1% viscous deflection in the system; for steel E=30,000 ksi.
Alkaloids are chemical compounds containing nitrogen that can be produced by plant cells. In an experiment, an insulated closed vessel 1.673 m3 in volume was injected with a dilute water solution containing two alkaloids: ajmalicine and serpentine..
Metallurgical balance in mineral processing, Assume 2000 short tons of ore were mined, 200 tones were rejected as waste and the tonnage accepted for metallurgical treatment
Over the past 3 years, there have been 14, 13, and 15 crashes on this section of College Street. The two-way ADT on this section is 16,474 vehicles per day. What is the annual crash rate for this section of College Street
Air at 200 kPa and 950 K enters an adiabatic nozzle at low velocity and is discharged at a pressure of 80 kPa. If the isentropic efficiency of the nozzle is 92%, determine the temperature and velocity of the air at the exit.
a 10.0 inch long 10-guage wire of yellow brass (E=105 GPa) is subjected to an axial tensile force of 400 lbs. Find the normal sress and deformation in the wire. A 10-guage wire has a diameter of 2.588 mm.
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