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Determine the upstream depth of flow in a subcritical transition from an upstream rectangular flume that is 49ft wide to a downstream trapezoidal channel with a width of 75ft and side slopes of 2:1. The transition bottom drops 1 ft from the upstream flume to the downstream trapezoidal channel. The flow rate is 12,600 cfs, and the depth in the downstream trapezoidal channel is 22ft. Use a head loss coefficient of 0.5.
An inspector is paid $10/hr and can sort 10 rings/min. Assume that a new method allows her to sort 20 rings/min but costs $500 to implement. Is it worth implementing the new method for a batch of 50,000 rings? At what point does the new method pay of..
To adjust the mix so as to increase the compressive strength, the water-to-cement ratio is reduced to 0.45. Will the quality of the coarse aggregate increase, decrease, or stay the same
Discuss the differences between how engineers see themselves and how the public sees engineers
The students strikes the sign at a speed of 35mi/h. If the student was travelling at 55mi/h when the sign was first spotted, what was the student's associated reaction time( use practical stopping distance)
After the Chernobyl accident, the concentration of 137Cs in milk was proportional to the concentration of 137Cs in the glass that cow consumed. The concentration in the grass was, in turn, proportional to the concentration in the soil.
In a venturi meter the gage pressure is 120 kPa whencavitation just starts to occur. If the Diameter is 40 cm and theneck diameter is 14 cm, what is the water discharge in the system for this condition of incipient cavitation
Water ?ows at 6 ft/ s through a pipe 500 ft long with diameter 1 in. The inlet pressure p1= 200 psig, and the exit section is 100 ft ft higher than the inlet. What is the exit pressure p2 if the friction head loss is 350 ft?
Helium (Hrom an intie) at a rate of 1.5 lbm/s is compressed inan adibatic compressor from an intial condition of 70 F, 14.7 Psiato final condtion of 1070 F, 147 Psia. Determine:
A simply supported beam with a pin support at A and a roller support at B with length L=20 ft has a force P=10 kips applied at x=15 ft from point A. What are the reactions at A?
Consider a wind turbine at elevation of 7000 ft. The air pressure is taken to be 80kPa and the mean annual temperature is 2 degrees Celsius. What are the specific mechanical energy and power available
An external moment of magnitude 110 N-m is applied in the counter clockwise direction as shown. A frictional moment of magnitude 10 N-m resists the rotation. The specific weight of the material is 250 lbs / ft3.
Determine the volume flow rate per unit width amd tje shear stress of the upper plate (Start with the full, three-dimensional Navier-Stokes equations and the continuity equation, simplify them, and then solve them
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