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A vertical curve 120 m long of the parabola type is to join a falling gradient of 1 in 200 to a rising gradient of 1 in 300. If the level of the intersection of the two gradients is 30.36 m give the levels at 15-m intervals along the curve. If the headlamp of a car was 0.375 m above the road surface, at what distance will the beam strike the road surface when the car is at the start of the curve? Assume the beam is horizontal when the car is on a level surface.
Successive plus and minus sights taken on a downhil line of levels are listed below. the values represent the horizontal distances between the instrument and either the plus or minus sights.
The results, which are assigned certain weights, are as follows: 46°13'28", wt 1; 46°13'32", wt 2; and 43°13'30", wt 3 What is the most probable value of the angle?
The mass of arm BC is 4 kg, and the arm may be treated as a uniform slender rod.
compute the finals velocities v1' and v2' after collision of the two cylinders which slide on the smooth horizontals shaft. The cofficient of restitution is e= 0.6. m1 = 2 kg, v1= 7m/s and m2 = 3 kg , v2 = 5 m/s
A waste water sample contains 2.092mmol/L NaCl. Calculate the concentration of NaCl in mg/L. What are the mmol/L concentrations of Na and Cl. Na = 23 and Cl = 35.5.
A survey of similar facilities indicates that one parking space must be provided for every one employee and that 60% of all automobiles driven to work are compact automobiles, six percent of the spaces should be allocated for the handicapped.
How was this answered reached? what equation was used? equation of a line? could you please explain how the answer was reached and a detailed explanation of the math behind it.
In a water table aquifer bounded on the ends by rivers, the hydraulic conductivity is 50 m/day. The hydraulic heads at x = 0 and x = 1000 m are 100 m and 90 m, respectively.
When the ambient air is at 70 degrees Fahreneit, 14.7 psia, and contains 21% oxygen by volume, 4.5 lb of air are pumped into a scuba tank, capacity 0.75 ft^3. What volume of ambient air was compressed?
For a given hypothetical flow, the velocity from time t=0 to t=5 seconds was u=2 m/s , v=0. Then, from time t=5 s to t=10 s, the velocity was u=+3 m/s, v=-4 m/s. A dye streak was started at a point in the flow field at time t=0
A rectangular concrete channel is 3 m wide and 2 m high. The water 20 deg Celsius in the main channel is 1.5 m deep and is flowing at a rate of 30 m^3/s. determine the flow area, wetted perimeter, and hydraulic radius. is the flow laminar or turbu..
Calculate the speed of the airplane and the flight Mach number
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