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The composition of moist air is given on a molar basis to be 78 percent N2, 20 percent O2, and 2 percent water vapor.
Determine the mass fractions of the constituents of air
A magnetic separator processes 500 kg/hr of finely ground magnetite ore (Fe3O4). The ore containes 35% magnetite and an analysis of the concentrate and tailings shows that they contain 59.5% Fe and 3.8% Fe
A 2-lb sphere A is moving to the left with a velocity of 40 ft/swhen it strikes the inclined surface of a 5-lb block B which is atrest. The block is supported by rollers and is attached to a springof constant k=12 lb/in.
Find a recurrence relation for the number of ways to go n miles by fast walking at 2 miles per hour or jogging at 4 miles per hour or running at 8 miles per hour; at the end of each hour a choice is made of how to go the next hour.
At a section in a beam the tensile stress due to bending is 70 N/mm 2 and there is a shear stress of 25 N/mm 2 . Determine from first principles, the magnitude and direction of the principal stresses and calculate the max shear stress.
Calculate the radius of a palladium atom, given that Pd has an FCCcrystal structure, a density of 12.0 g/cm^3 , and an atomic weightof 106.4 g/mol.
What is the corresponding horizontal distance between the points - The slop distance 156.777 from one poin to another at rate of+1.5%
Estimate the buoyant force on 10'x10' by 2' deep balsa (SG=0.2) raft with you in it. How deep is it in the water. Be sure to draw well leveled schematic of the system.
Raw primary sludge at a solids concentration of 3% is mixed with waste activated sludge at a solids concentration of 6,000 ppm. The flows are 20 and 25 gal/min, respectively. What is the resulting solids concentration
Consider a box model for an air shed over a city that is 1 X 105 m on a side, with a height of 1200 m induced by a temperature inversion. Winds with no SO2 blow at 4 m/s agains one side of the box. SO2 is emitted in the box at the rate of 20 kg/s.
The degradation constant is 0.2 1/d. If the initial concentration is 100 mg/L, how many days are required for the concentration to reach 0.14 mg/L
Two piezometers are located 1000 ft apart with the bottom located at depths of 50 ft and 350 ft, respectively, in a 400-ft-thick unconfined aquifer. The depth to the water table is 50 ft in the deeper piezometer and 40 ft in the shallow one.
The member is supported by a pin at A aand a cable BC. If the load at AD is 300 lb, determine the x,y,z components of reaction at the pin A and the tension in cable b c
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