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1.How many hours should it take an articulated wheel loader equipped with a 4 yd3 bucket to load 3,000 yd3 of gravel from a stockpile into rail cars if the average haul distance is 300 feet one way? The area is level with a rolling resistance factor of 120 lbs./ton. Job efficiency is estimated at 50 min./hour
2.Two towers A and B are located on flat ground and their bases have equal elevations above sea level. A person on tower A whose eye level is 26.0 feet above the ground can just see the top of tower B, which is 105 feet above the ground. How far apart are the towers?
At an excitation frequency of 4 Hz, the response tends to increase without bound(ie a resonant condition). Next, a weight of deltaW= 5lb is attached to the mass m and the resonance test is repeated.
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
A discharge meter to be used in a 40 cm pipeline carrying oil (kinematic viscosity = 10-5 m2/s, density = 860 kg/m3) is to be calibrated by means of a model (1/4 scale) carrying water (T = 20°C and standard atmospheric pressure).
Create a visual, window-based program for multiplying two 3x3 matrices together. Create 18 text boxes for input and 9 text boxes or labels for output
Data obtained from aerial photography showed six vehicles on a 600 ft long section of road. Traffic data collected at the same time indicated an average time headway of 3.6 sec.
All stormwater will drain as sheet flow to the center, flow into a drop inlet, and travel through a pipe system to the nearest stream. The parking lot will be mowed grass (clay soil) with a slope of 2 percent toward the center.
An automobile having a mass of 900 kg initially moves along a level highway at 100 km/hr relative to the highway. It then climbs a hill whose crest is 50m above the level highway and parks at a rest area located there
a model rocket is launched straight upward. its altitude y as a function of time is given by y bt -ct2 where b 82 ms
Three forces are applied to the bar. Determine the normal and shearing stresses at (a) point a, (b) point b, (c) point c.Assuming that the 750-N force is directed vertically upward.
A wire has a resistance of 1.2×10-2 . What will the wire's resistance be if it is stretched to twice its original length without changing the volume of the wire?
design a concrete (n = 0.013) channel that will convey 50,000 GPM. It is to be a trapezoidal in cross section with a bottom width of 7.5 feet. The side slopes are to be 1.33:1 (H:V) and it is desired to have the depth of flow constant at 2.0 feet.
What is the chemical name of the first hazardous air pollutant under Title III regarding the Clean Air Act
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