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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 pipe is to be installed under the ground on a bed of aggregate 6 in. thick. The entire weight on the aggregate from pipe and soil above the pipe is 1800 lbs. per linear foot of pipe. What is the pressure on the soil if theta is 45 degrees
What is the name of the text book and author used for thr course CEE30 in the spring quarter of 2013, at University of California Irvine?
This project is expected to have a first cost of $2,000,000 and an annual maintenance cost of $50,000. In addition, major repairs costing $250,000 will be required after 25 years and each 15 years thereafter.
A rectangular concrete channel 10 m wide has a bed slope of 1 m/km and surface roughness equivalent to a Manning n of 0.02. It is proposed to use a hump on the channel bed for the purpose of flow measurement. If the maximum discharge is 150 m3/s:
derive an equation for the velocity profile within the film in terms of radial distance r, measured from the cylinderaxis, the film thickness, δ, and the appropriate physicalpropertiesof the liquid. State clearly all assumptions made
each wire has a tension of 1kN and is inclined at 45 degree to the vertical. calculate the increase in vertical stress at a depth 1 m below the surface and the amount of elastic settlement below the axis of the pole if E = 40 Mpa and v=0.45
a horizontal cylindrical tank 4 ft in diameter and 10 ft long is full of water. find the work done in pumping the water to a point 4 above the top of the tank.
Compare the behavior of steel and concrete structural members such as beam and column under load
If the shaft AB is rotating with a constant angular velocity of w = 30 rad/s, determine the X, Y, Z components of reaction at the thrust bearing A and journal bearing B at the instant. The disk has a weight of 15 lb.
A rigid wall tank with volume of 2.5 m^3 initially contains ammonia at 20 degrees C, 150 kPa. The tank is attached to a supply line containing ammonia at 1200 kPa, 60 degrees C.
Achieve a concentration of 0.5%wt of carbon at a depth of 0.2 mm below the surface of the slab of a metal. The initial concentration of carbon in the metal is 0.1wt%. We first do an experiment by applying a concentration of 5%wt of carbon at the surf..
Describe the application of geophysical techniques using electromagnetic induction as a tool for sustainable soil and water management of agricultural fields in the humid tropic Caribbean 300 word limit".
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