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A rectangular column with cross-sectional dimensions b and h is pin-supported at ends A and C (see figure). At midheight, the column is restrained in the plane of the figure but is free to deflect perpendicular to the plane of the figure. Determine the ratio h/b such that the critical load is the same for buckling in the two principal planes of the column.
Consider atmospheric air at 25 degrees Celsius and a velocity at 25 m/s flowing over both sides of a 1 eter long flat plate that is maintained at 125 degrees Celsius. Determine the rate of heat transfer per unit width from the plate for values of th..
If the temperature of the outer surface is 400 K and its convection coefficient and emissivity are h = 20 W/m2 · K and s = 0.8, respectively, what is the temperature of the inner surface if the wall has a thermal conductivity of k = 0.7 W/m2 · K?
Compute the wet bulb temperature of moist air that has been cooled and dehumanized from 25 C and 80 percent relative humidity to 23 C in a counter-flow spray dehumidifier. The water leaves at 15 C. (Use thermodynamic tables and Lewis number charts). ..
an adiabatic capillary tube is used in some refrigeration systems to drop the pressure of the refrigerant from the
1 youngs modulus for aisisae 1045 steel is 29.0 x 10 6 psi and its poissons ratio is 0.32. what are its shear and bulk
you are trying to pump storm water out of your basement during a storm. the pump can extract 0.6 ls. the water level in
Design a process for the manufacture of 10^6 kg per year of mayonnaise. the shelf life of the product is expected to be 1 year. You need to complete the following in your design.
Air undergoes two processes in series: Process 1-2: Polytropic compression, with n = 1.3, from P1 = 100 kPa, V1 = 0.04 m3/kg to V2 = 0.02 m3/kg Process 2-3: Constant pressure process to V3 = V1 Sketch the cycle on a P-V diagram and determine the work..
Mary applies a force of 79N to push a box with an acceleration of 0.47 m/s2.When she increases the pushing force to85N,the box's acceleration changes to 0.73 m/s2. There is a constant friction force present between the floor
refrigerant 134a enters a compressor operating at steady state as saturated vapor at -8 degress celcius and exits at a
develop a mathematical model and use it to determine how fast you would have to ride your bike to make it from the roof
for some transformation having kinetics that obey the avrami equation the parameter n is known to have a value of 1.1.
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