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A horizontal beam AB is pin-supported at end A and carries a CW moment M at joint B, as shown in the figure. The beam is also supported at C by a pinned-end column of length L; the column is restrained laterally at 0.6L from the base at D. Assume the column can only buckle in the plane of the frame. The column is a solid steel bar (E = 200 GPa) of square cross section having length L = 2.4 m side dimensions b = 70 mm. Let dimensions d= L/2. Based upon the critical load of the column, determine the allowable moment M if the factor of safety with respect to buckling is n = 2.0.
A certain industrial process requires a steady 0.75 kg/s supply of compressed air at 500 kPa, at a maximum temperature of 30C. This air is to be supplied by installing a compressor and after cooler. Local ambient conditions are 100 kPa, 20C. Using a ..
Classify the sections of the components in automatic control system.
an isolated muscle with cylindrical shape is stimulated repeatedly until the concentration of lactate in the muscle
a room 3 by 3 by 3 m has one side wall maintained at 260 c. the floor is maintained at 90 c. the other four surfaces
Decorative water fountains consist of a water reservoir and underground piping to and from a pump. One such system is shown schematically in the figure. The pipe material is PVC(a table is provided). The outlet line from the pump is 18 m and the inle..
a closed rigid vessel conatains 3 liguid water and 97 water vapor by volume. the mixture is in equilbrium at 100o c.
a rigid tank contains 0.1-kg of air at 300 kpa and 300 kelvin. the air is now heated until the pressure doubles.
A 0.7-lb block rests on top of a 0.5-lb block supported by but not attached to a spring of constant 9 lb/ft. The upper block is suddenly removed. Determine (a) the Maximum velocity reached by the 0.5-lb block, (b) the maximum height reached by the..
The required cross sectional areas for bar, given an allowable tensile stress of 45 ksi, and an allowable compressive stress of 24 ksi. Tabulate your result showing bar forces, cross sectional areas and lengths
a sheet of plywood 1.39 cm thick is used to make a cabinet door 55.5 cm wide by 69.5 cm tall with hinges mounted on the
In 1775, Dr. William Cullen made ice in Scotland by evacuating the air in a water tank. Explain how that device works, and discuss how the process can be made more efficient.
A model of an airplane is to be tested at 20°C in a wind tunnel. The model is built to 1/12th scale. In order to match both the Mach number and the Reynolds number of the plane, the wind tunnel is pressurized. To what pressure (in atm) should the air..
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