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Design a square individual column footing (reinforced concrete) to support a 16-in.-square reinforced concrete tied interior column. Service loads are 200 kips dead load and 160 kips live load. Both column and footing have f′ c = 4000 psi and fy = 60,000 psi. The allowable soil pressure is 5000 psf, and we = 100 lb/ft3. The bottom of the footing is to be 4 ft below grade. The column is reinforced with eight No. 7 bars.
a 2.0 cubic meter rigid tank contains a water-vapor mixture at 100 kpa. heat is transfered until the pressure reaches
a particle moves along the curve yx2 - 4m with a constant speed of 5 ms. determine the point on the curve where the
what is the factor of safety for the footings against bearing failure if the clay soil has an unconfined compressive strenght of 3,600 psf? The back of the book says that for a 5 ft. footing, the estimated settlement= 1.72 in. And for a 10ft. foot..
a pressure measurement system has the following specifications range 0 to 1 kpa linearity error 0.05 fso hysteresis
compare air and helium as cooling media for electronic devices. both fluids must exit through an area of 0.025 m2. the
when the efficiency of an otto cycle will approach that of carnot cycle? even with nest possible arrangements the
As a pickup truck (total mass of 2500 kg, including fuel and driver) approaches a rise in an otherwise flat road, the driver presses the clutch and begins to coast. Initially, the truck was moving at 26 ms. For many reasons, including friction losses..
air at a temperature of -7c and 1 atm pressure flows along a flat surface an idealized airfoil at a constant velocity
Also calculate values for slip factor using the equations of Stodola and Busemann, comparing the answers obtained with the result found from Wiesner's equation.
1. Why does popcorn pop? 2. A plastic milk jug filled with water and stored within a freezer ruptures. Why? 3. Apart from keeping food and beverages cool, what are other uses for dry ice?
A refrigeration cycle maintains a clean room at 68oF by removing energy entering the room by heat transfer at the rate of 0.21 Btu/s. The cycle rejects energy by heat transfer to the outdoors where the temperature is 80oF.
Assume a diffusion coefficient of 1 × 10-8 m2/s, that the concentrations at the high- and low-pressure sides of the plate are 2.4 and 0.6 kg of hydrogen per cubic meter of palladium, and that steady-state conditions have been attained.
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