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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.
The force of the expanding gases on a 0.02 kg bullet is given by f=f0-f.1*t . Initially stationary at x=0 , the bullet reaches a speed of 1000 kph by the time it exits the gun
The coefficient of friction between a car’s tires and the road is such that the car can generate a maximum deceleration of 1.1g without experiencing slip. What is the minimum radius of curvature
For an interest rate of 12% per year compounded every 2months, determine the nominal interest rate per (a) 4 months (b) 6months, and (c) 2 years
A 4-m-long steel rod must not stretch more than 3 mm and the normal stress must not exceed 150 MPa when the rod is subjected to a 10- KN axial load.
What is atomic packing factor? Which crystalline structures exhibit the maximum atomic packing factor values? Please provide detailed solutions, steps and explanations
The beam is supporting a concentrated load due to a 20 tons crane which moves from A to F. What is the maximum shear force due to the crane at support B? Also determine the maximum moment due to the crane at point B and C.
a hydraulic jump is to be formed in a trapezoidal channel with a base width of 20ft and a side slope of 2:1. The upstream depth is 1.25ft and Q=1000 cfs. Find the downstream depth and the head loss in the jump.
The depth of water, H, behind a gravity dam is normally distributed with a mean of 100' and variance of 2,500 ft2. The total hydrostatic pressure against the dam is F=?H2/2, where ? is the unit weight of water (62.4 pcf).
Estimate the time when the temperature at the geometric center of a 6 cm diameter apple held in 2`C water stream reaches 3oC. The initial uniform temperature of the apple is 15`C.
Reconsider Prob. 12-16. Using EES (or other) software, verify the validity of the last Maxwell relation for refrigerant-134a at the specified state.
Wastewater flow is 80 gpcd with 170 mg/l BOD and 190 mg/l suspended solids. Size the extended aeration basin and clarifier using the minimum detention time and overflow rates. Calculate the average F/M using an MLSS of 1000 mg/l.
A nylon thread is to be subjected to a 10-N tension. Knowing that E=3.2 GPa, that the maximum allowable normal stress is 40 MPA, and that the length of the thread must not increase by more than 1%
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