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The local atmospheric pressure in Denver, Colorado (elevation 1610 m), is 83.4 kPa. Air at this pressure and at 30°C flows with a velocity of 6 m/s over a 2.5-m 8-m flat plate whose temperature is 120°C.
Determine the rate of heat transfer from the plate if the air flows parallel to the (a) 8-m-long side and (b) the 2.5-m side.
The properties of the glass are α = 1.5 × 10-6/?C, E = 70 GPa, υ = 0.30. [Hint: Assume a linear temperature gradient and for simplicity take the midpoint strain as zero.]
one surface of a 12-cm-thick slab thermal conductivity k2.5 wm. degree c is maintained at 100 degree c. the other
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Draw the Mohr's circle for this stress state, deterrnine the principal stresses and the angle of the principal direction to the x-axis and determine the maximum shear stress.
The tensile strength of iron-carbon alloys increases as the percent carbon increases up to about 1.5 to 2%. Above this the tensile strength drops rapidly with increased percent carbon. Speculate about the nature of this abrupt change.
Liquid water at 26.67°C flows in a straight horizontal pipe in which there is no exchange of either heat or work with the surroundings. Its velocity is 40 ft/seg in a pipe with an internal diameter of 2.54 cm until it flows into a section where the p..
If the flow of 0.10 m3/s of water is to be maintained in the system shown, what power must be added to the water by the pump? The pipe is made of steel and is 15 cm in diameter
13 lbm of air inside a rigid tank contains is initially at 100of and 40 psia. the tank is heated until its pressure is
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a circular bar of radius r 1 cm is placed horizontally between two vertical supports that are separated by distance l
a 356 mm diameter main services a section of a mine and carries 4.8 kgs of compressed air at peak periods. if the main
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