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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 the 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 river discharges at a rate of 500 cfs into a lake. The water is drawn from the lake at a rate of 200 cfs. The surface area of the lake is 60 acres (1 acre = 43, 560 ft2). What is the rate of water rise in the lake in one day
A two stage high rate trickling plant is to treat a municipal wastewater having a flow of 2.0mgd. pertinent data: influent BOD5 = 200mg/l, BOD5 removal by primary clarifier = 33%, filter bed depth = 5 to 7ft,
The article "Leachate from Land Disposal Residential Construction Waste" (authored by W.J. Weber, Y.-C Jang, T.G. Townsend, and S. Laux, Journal of Environmental Engineering, 128(3): 237 - 245, 2002) presents a study on contamination
True bearing of line is 300 and the magnetic declination is 30 W its magnetic bearing is what and Next If the back bearing of line is N 600 W its fore bearing is what ?
The wastewater influent has a linear velocity of 0.5m/s and contains 3.0x10^5 fecal coliform colony unit (CFU) per liter. Determine the coliform concentration of the discharge effluent into Back river.
A fisherperson, pulling on the anchor cord, causes a force on the man of F=(40i+20j-50k)N. If the cord is 30m long,determine the Cartesian coordinates of the anchor at A. Assume that cord OA is a straight line.
From the results of an oedometer test on an undisturbed sample of clay taken at a depth of 10 m from the ground surface, the maximum vertical preconsolidation pressure (s’vmax or s’c) was found to be 560 kPa. The clay layer has a saturated unit weigh..
A 50 cm by 20 cm block weighing 150 N is to be moved at aconstant velocity of .8m/s on an inclined surface of 20 degreesfrom horizontal with a friction coefficient of .25.
A variety of procurement strategies are available to the construction clients under different circumstances. The common strategies adopted by international clients include deisgn-bid-build (DBB), design-and-build (D&B), management contracting (MC), c..
Determine the actual field weight required to mix a 4 bag mix using the mix proportions given below. The excess moisture contet of the sand is 6% and that of the gravel is 2% Component Weight ..
Determine the design load for strength and serviceability limit states (short-term and long term), for a steel beam in a residential building with the following data;
Find the point at which the line with parametric equation x=2+3t, y=-4t, z=5+t intersects the plane 4x+5y-2z=18
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