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Is depreciation equivalent to both investment and expense which have been categorized as environmental conservation cost?
A proposed combined cycle power plant is shown below. A gas turbine engine, the topping cycle, takes air at state 1 (T=300 K, P=100 kPa) and compress it irreversibly (hc=0.87) to state 2.
What is the highest downward speed (the terminal velocity), in miles per hour, ? At the terminal velocity the downward force (the weight) is equal to the upward force (the aerodynamic drag force).
Three point loads 10,000, 7500 and 9000 kN act in line 5m apart near the surface of a soil mass. Calculate the vertical stress at a depth of 4m vertically below the centre (7500kN) load.
the rig shown consists of a 1200-lb horizontal member abc and a vertical member dbe welded together at b. the rig is
A plate of aluminum is exposed to an atmosphere of Copper hydride,and on the other side of the plate, an atmospere that is deficientin copper hydride. If a steady state condition is achieved
A 10,000 cubic yards fill along a forest road right of waywill be compacted using grid rollers to a unit weight of 120 poundsper foot cubed. the fill material will be hauled to the site in 12cubic yard dump truck that are tipically loaded to about 85..
determine the velocity of the 30 kg block A if two block are released from rest and the 20 kg block B moves 0.6 m up the incline. the coefficient of kinetic friction between both blocks and the inclined plane is 0.10
Suppose the average concentration of SO2 (SOsub2) is measured to be 400microgram/cu.m at 25degree celcius and 1 atm. Does this exceed the (24-hr) air quality standard of 0.14 ppm
A composite price index for the cost of vegetarian foods called eggs, artichokes, and tofu (EAT) was 330 ten years ago and has averaged an annual increase of 12% since. Calculate the current value of the index.
A convective kerosene heater is tested in a well-mixed chamber having an air exchange rate of 0.39 ach. After 1 hour of operation, the NO concentration reached 4.7 ppm (remember PV=nRT).
Design a series of closely spaced parallel box beams that will support an asphalt road surface over a 10 foot wide, 40 foot long span. The hollow box beams are made of concurred and imbedded No. 8 steel rods (1 inch dia.).
The effluent contains 20 mg/L of solids and 20 mg/L of BOD the biological treatment process produced .32 kg of bacterial solids per kg of BOD removed
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