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design a concrete footing to support a 16in by 16 in column that is 13 feet high with f'c= 6000 psi. The footing has a f'c=3000psi. Assume the the footing base is 5 ft below the grade and the soil is 100 lb/ft with an allowable pressure of 4500lb/ft fy=60,000
An electron is released from rest at a perpendicular distance of 9.9 cm from a line of charge on a very long nonconducting rod. That charge is uniformly distributed, with 9.0 ?C per meter. What is the magnitude of the electron's initial accelerati..
Provided that the amplitude is sufficiently great, the human ear can respond to longitudinal waves over a range of frequencies from about 20 Hz to about 20000Hz. Compute the wavelength corresponding to these frequencies
Assume the flow is incompressible, irrotational, quasi-steady and the only body force acting is gravity. Determine the pressure, pb, required to increase the jet velocity by 50% relative to the value realized for atmospheric pressure, pa, in the u..
A 1kg ball is dropped from the top of a cliff and falls with a constant acceleration due to gravity. Assume that effects of air resistance can be ignored.
An absorption column is to be designed to recover 99.5% of the NH3 from a feed stream, which is supplied at 72 F and an NH3 partial pressure of 10 mm Hg. The feed stream contains 2100 lbm/hr of air.
Draw A flow net. Show flow lines, flow Channels, and Equipotential lines. Using flow nets, please provide an estimate of seepage rate below the dam. Your submittal will provide the basis for an environmental impact statement regarding the construc..
A discharge of 2,200 ft^3/sec flows in a trapezoidal channel at a normal depth of 8.0 ft. The channel has a slope of 0.01, a 12-ft bottom width, and side slopes of 1:1 (H:V). Determine the manning coefficient of channel roughness
A water supply system is being designed to serve a population of 200,000 people with an average per-capita demand of 600L/Person-day (peak demand factor is 1.8) and a needed fire flow of 28,000 L/min.
Write a program that uses menu to select a type of figure (triangle, sqaure, pentagon, hexagon, heptagon, octagon), and then use switch-case to determine the value of n.
Measurements of water-balance components have been made for a one-year period on a lake with an area of 4.4 km2 with the following results: P = 350 mm, Qsi = 2.33 x 107 m3, Qgi = 2.2 x 105 m3, Qgo = 0.6 x 105 m3, and Qso = .10 x 107 m3.
If the engine is mounted solidly on a rigid foundation, what is the alternating force amplitude transmitted? Assume the connection rod to be of infinite length.
The pH of clean rain is influenced by the partial pressure of CO2 in the atmosphere. In addition, acid rain can be formed when sulfur dioxide (SO2) is discharged into the atmosphere. i) The atmospheric CO2 concentration could rise to 400 ppmv by 20..
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