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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 25 mm diameter steel cylinder falls under its own weight at a uniform rate of 0.1 m/s inside a tube of slightly larger diameter. Castor oil of viscosity 0.25 N.s/m2 fills the spacing between the tube and the cylinder.
A hydrologic structure (e.g. a dam or a dike) is said to be designed for the N-year flood if it has a capacity which will be exceeded only by a flood equal oto or greater than N-year flood. The magnitude of the N-year flood is that which is exceeded ..
This is an engineering level report should be a bit more advanced on a council in melbourne "whittlesea city council"
A 45-percent efficient, coal-fired power plant generates output power of 1000 MW (106 kW) and emits SO2 at the legally allowable rate of 0.6 lb SO2 per million BTU of heat into the plant. The stack has an effective height of 250 m.
A bus strike will eliminate all bus traffic, but it is estimated that for each bus removed from the roadway, seven additional passenger vehicles will be added as travelers seek other means of travel. What are the density, volume-to-capacity ratio,..
10-kg of nitrogen is heated from 20 degrees C to 250 degress C. Determine the total amount of heat required when this is done in (a) a constant-volume process and (b) an isobaric process.
A contractor wants to build a fill at his new construction site. He has two options for purchasing his borrow material. Site A has a soil with a unit weight of 2.5 kN/m3, a moisture content of 14% and a cost of $8 per cubic meter.
Explain why, and under what conditions, it is reasonable to ignore the change in over small intervals of time.
two uniform rectangular plates weighing 800 llb ar freely hinged about their commonn edge and suspended by central cable ad for symmetrical corner cables. calcuate tension T in each of the corner cables and the tension To in the center
The level of water in a city water tower is 125ft. above the ground. The tank is kept with an air space which can be pressurized with compressed air. It is important to maintain a pressure at the bottom of the tower at 75 psig
Apiece of corroded steel plate was found in a submerged ocean vessel. it was estimated that the original area of the plate was 62.5cm 2 and approximately 2.8k had corroded away during the submersion.
Neglect the mass of the cables and treat the chair and person as one particle.
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