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The C150 × 19:3 channel is used as a column with an effective length of 3 m. Determine the largest eccentricity e of the 14.5-kN load for which the maximum tensile stress does not exceed the maximum compressive stress. Use E = 200 GPa.
An air-conditioner using R-134a as the working as the working fluid maintains a space at a constant temperature of 23 degrees celsius while rejecting heat to the outside at 37 degrees celsius. The rate of heat gain in the space is 5.0kW.
a rigid chamber contains 100 kg of water at 500 kpa 100 c. a paddle wheel stirs the water at 1000 rpm with a torque of
a 98 kg log is being moved by placing it on two cylinders. when the log has a linear velocity of 2.76 ms a force
what is the pressure differeence between the inside of a soap bubble and the atmosphere for a 3 inch diameter bubble?
In an isentropic process a perfect gas expands from 140kPa to 110kPa. If the initial temperature is of the gas is 150 deg C, determine the temperature of the gas at the end of expansion.
a mixing chamber steadily mixes a hot water stream at 80degc and 0.5kgs rate with a cold water stream at 20degc. if the
Calculating Test Mach Number, The temperature in a reservoir of a supersonic tunnel is 519 deg.R. In the test section, the flow velocity is 1385 ft/s.
a spherical underwater instrument pod used to make soundings and to measure conditions in the water has a diameter of
Briefly explain the following concepts related to exposure thresholds: time-weighted average, short-term exposure limit, exposure ceiling, and biological exposure indices.(Your response must be at least 200 words in length.)
A pure copper sphere of radius 1 cm is dropped into an agitated oil bath that has a uniform temperature of 130C. The initial temperature of copper sphere is 20C.
The temperature in a vessel is 36°C and the proportion by mass of air to dry saturated steam is 0.1. What is the pressure in the vessel in bar and in mm of mercury vacuum? The barometric pressure is 760 mm Hg.
If one is a refrigeration cycle and the other is a heat pump cycle, what is the relation between their coefficients of performance?
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