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The free end of the W250 × 67 steel cantilever beam is supported by a spring of stiffness k = 180 Kn/m. The 3.6-kg mass is dropped on the end of the beam from a height of 1.0 m. Determine the maximum dynamic stress in the beam. Use E = 200 GPa for steel.
A system consisting initially of 0.5 m3 of air at 35°C, 1 bar, and 70% relative humidity is cooled at constant pressure to 29°C. Determine the work and heat transfer for the process, each in kJ.
in order to improve business the wiessherr biergarten in augsburg germany began a new gimmick promotion the bier
consider the electrical conductor assembly in the form of four 4 parallel plates that have one edge mounted to a
in a rankine cycle with reheat steam at 500c expands in a high pressure turbine until it reaches the saturated vapor
helium gas in an ideal otto cycle is compressed from 12c and 2l to 0.25l and its temperature increases by an additional
a tube with elastic modulus of 75 gpa is used to support a compressive load. it is required that this tube must not
a diesel engine uses 54.4 kg of fuel oilh of calorific value 45 mjkg. the thermal efficiency of the engine is 25.
1. Determine the net electric power produced by the fuel cell-fan system, Pnet = P - Pf . 2. Consider the effect of attaching an aluminum (k = 200 W/m · K) finned heat sink, of identical top and bottom sections, onto the fuel cell body. The contact j..
A flat disk of outer radius b-125mm and inner radius a=25mm is shrink-fitted onto a shaft of radius 25.05mm. Both members are made of steel with E=200Gpa, v=0.3, and p=7.8 KN.s2/m4. Determine (a) the speed in rpm at which the interface pressure becom..
a water-coolerice-maker operates at steady-state producing chilled water at 5 c and ice at -10 c from tap water at 20c.
A 680 liter oxygen tank is filled to the pressure of 13.7 Mpa, and used to help a respiratory patient in a room with a temperature of 20 degrees C. During one treatment, 135 Liters of oxygen is supplied from the tank to the patient. The tank is then ..
A small aperture is located at the bottom of the enclosure to permit sighting of the sample or the enclosure wall. The spectral reflectivity PA of an opaque, diffuse sample material is as shown. The heat transfer coefficient for convection between..
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