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On the photograph of Problem 27.12, the image c of a third point C appears. Its elevation hC = 1365 ft, and its photo coordinates are xc = 2.96 in. and yc = -3.02 in. Compute the horizontal angles in triangle ABC.
Problem 27.12:
Determine the horizontal distance between two points A and B whose elevations above datum are hA = 1560 ft and hB = 1425 ft, and whose images a and b on a vertical photograph have photo coordinates xa = 2.95 in., ya = 2.32 in.,xb = -1.64 in., and yb = -2.66 in. The camera focal length was 152.4 mm and the flying height above datum 7500 ft.
A gunite concrete trapezoidal channel (n = 0.019) with 1:2 side slopes, as ilustrated below, conveys 60 m3/s on a slope of 0.0005. Compute the depth of flow.
If the resultant force is directed along the boom from point A towards O, determine the values of x and z for the coordinates of point C. Set F sub B equal to 1490 N and F sub C equal to 2320 N.
Determine the appropriate yellow and all-red interval to use for each phase. Assume a 10 ft/sec2 deceleration rate, a one second reaction time, and a 20 ft. vehicle length. Round up yellow and all-red times to the nearest ½ second.
a vehicle pulls out onto a single lane highway that has a flow rate of 280 vehhr poisson distributed. the driver of the
Determine the minimum length of a crest vertical curve if the grades are +4% and -2%, Design speed is 70 mi/h. State assumptions used in solving this problem.
A completely mixed retention basin is used to treat an industrial waste water consisting of a non-conservative pollutant, using a reaction that destroys the pollutant according to first-order reaction kinetics, with k = 0.216/day
An adiabatic piston-cylinder device equipped with a spring maintains the pressure inside at at 300kPa when the volume is 0, and 3000kPa when the volume is 5 m3. The device is connected to a steam line maintained at 1500kPa and 200 C, and the initial ..
the apparent gas constant of the mixture.
A certain gas weighs 16.0 N/m3 at a certain temperature and pressure. What are the values of its density, specific volume, and specific gravity relative to air weighing 12.0 N/m3
State two properties of fluids define the term orthogonal ratio define the term slenderness ratio
A semicircular open channel to be made of concrete is to be designed to carry 1.5 m^3/s at a slope of 0.00085. Manning's roughness coefficient is 0.015. Determine the dimensions of the best hydraulic section.
The emission rate of radon into the crawl space is reported to be 0.6 pCi/m^2-s. An exhaust system was added to provide 1 air exchange per hour (ACH) in the crawl space. The outdoor concentration of radon is 1 pCi/L.
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