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Steam locomotives require water at such rates that the storage tank behind the locomotive was refilled at 100 mile interverals. one technique used was to place a long tank between the rails and the water the water would be scooped up as the locomotive passed over the tank. The water level of the locomotive storage reservoir is 4 meters above the water level on the rails. find teh minimum speed at which the train could pass over the tank and lift water up to teh full 4 m height. (hint: consider the locomotive to be stationary and neglecting all losses)
A car is traveling at 30 mph on a good, dry pavement at sea level. The front-wheel-drive car has a drag coefficient of 0.35, a frontal area of 30 ft2 and a weight of 2500 lbs. The wheelbase is 120 inches and the center of gravity is 20 inches from..
A person produces about 0.17 pounds of BOD per day in fecal waste. What is the population equivalent of the wastewater flow Based on this calculated population, what would the average daily wastewater production be per person
A ladder is supported by a horizontal floor and a vertical wall. Is 15 feet long and weighs 50 lbs, with the weight concentrated at its midlength. The ladder supports a person weighing 180 lbs.
A company facing an interest rate of 8% must choose among projects offering the following four-year cash flows. If the company is employing the net present value criterion, which project should they choose
A man having a weight of 167lbattempts to hold himself using one of the two methods. Determine the total force he must exert on bar AB in each case and the normal reaction he exerts on the platform at C.
In the construction management, there is a lot of procurement route that are necessary and suitable for the construction industry.
the flow profile is such that u=u(max)*(1-(r/R)^2) where u is the flow speed and r is the distance from the centre of the pipe in the radial direction. What is the shear stress on the pipe wall What is the shear force exerted by the oil on a 1m lo..
Calculate the percipitable water (mm) in a 10-km high standard atmoshperic column if the surface conditions are temperature=20 degrees C, pressure=101.3 kPa and the laspe rate is 6.5 degrees C/km.
Two level sections of an east-west highway (G=0) are to be connected. Currently, the two sections of highway are separated by a 4000-ft (horizontal distance), 2% grade. The western most section of highway is the higher of the two and is at elevati..
A force, 90 N in magnitude, is applied to control rod AB as shown. Knowing that the length of the rod is 225 mm, determine the moment of the force about point B by resolving the force into components along AB and in a direction perpendicular to AB..
Suppose a drainage basin has an area of 288 acres with a CN=55(Runoff Coef. of 0.30). Determine the peak discharge (in cfs) that would result from a 6.0in., 24-hr assuming there are no ponds and swampy areas.
Cork is used for sealing sparkling wine bottles. Aside from friction, why not use rubberbto seal wine bottles. (Hint: think about the force exerted by the pressure inside and how does that deform each material) Be sure to use poissons ratio in the..
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