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According to the design philosophy in the AASHTO Specifications, how does a heavy truck parked on a prestressed bridge girder effect the nominal shear resistance of the girder?
North City must choose between two new snow-removal machines. The SuperBlower has a $70,000 first cost, a 20 year life, and an $8000 salvage value. At the end of 9 years , it will need a major overhaul costing $19,000.
The geometry of the rod assembly is given as a=2.8 m, b=0.950 m, c=1.00 m, and d=0.600 m. Neglect the weight of the rod. The journal bearing supports the rod in such a manner that it is free to rotate in the Z-direction.
Determine the highest BODu concentration possible in the effluent which can still achieve the permitted requirement of a DO greater than 5 mg/L year round.H =4 m (assume no change due to wastewater flow)
Three streams of polluted air are combined prior to treatment in an electrostatic precipitator (ESP). The flow and particulate concentration of each stream are 600 cfm at150 mg/m^3, 700 cfm at 200 mg/m^3, and 500 cfm at 1000 mg/m^3.
A jet aircraft flies at a speed of 600 mph at an altitude of 40,000 ft. The atmosphere is the standard atmosphere. (1) What is the air pressure outside the aircraft (2) What is the Mach number of the flow around the aircraft
If I raise a 1000 lbf weight 100 feet above sea level on earth in 10 seconds how much power will be required
manufacturing process that unintentionally introduces cracks to the surface of a part was used to produce load-bearing components. The design requires that the component be able to withstand a stress of 450 MPa.
Important information about Mechanical engineering dynamics, A 3000 lb car rests on a horizontal street out of gas with its brakes locked.
The canal shown below is to be widened so that it can carry twice the amount of water. Determine the additional width L required if all other parameters (i.e. flow depth, bottom slope, surface material, side slope) are to remain the same.
A steady, incompressible two-dimensional velocity field is given by the following components in the xy-plane u = 0.205 + 1.72x + 0.851y v = -0.509 + 0.953x - 1.72y
A Fe-.25 w/o Carbon alloy is sloly cooled to 700 degrees C. What is the composition of the Ferrite(alfa) phase and what is the compositon of the cementite(Fe3C) phase. Whate are the relative fractions of ferrite and cementite
An 8.5 m compacted fill is to be placed over the soil profile. Consolidation tests on samples from points A and B produced the following results. a) Calculate the consolidation settlement caused by the weight of this fill.
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