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An incompressible Newtonian fluid flows steadily between two infinitely long, concentric cylinders of radius ri and ro, for the inner and outer cylinders, respectively. Outer cylinder is fixed and the inner cylinder moves horizontally with a uniform velocity Vi. Assuming laminar, axisymmetric and fully-developed flow, determine the velocity distribution in the gap. Find expression for Vi (in terms of other relevant variables) that the drag on the inner cylinder becomes zero.
sometime when riding an elevator or driving up or down a hilly road a persons ears pop as the pressure difference
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billiard ball a of mass. ma0.400kg moving with speed va1.80ms strikes ball b initially at rest of mass mb0.500kg. as a
a lear jet flying at 150 kcas assume no errors due to compressibility so lets assume 150 keas at sea level on a
a fixed amount of water vapor initially at 20mpa 520c is cooled at constant volume until its temperature reaches
consider an ideal steam combined reheat and regenerative cycle in which steam enters the high-pressure turbine at 500
A steel rod 1 cm in diameter and 30 cm long protrudes from a steel surface at 150 C. The rod is surrounded by air at 10 C with a convective heat transfer coefficient of 10 W/m2 C. The thermal conductivity of steel is 114 W/m C. Determine the heat ..
a two vehicles travelling on a road in the same direction collide. vehicle 1 has a mass 1200kg and is travelling at
Assume a diffusion coefficient of 1 × 10-8 m2/s, that the concentrations at the high- and low-pressure sides of the plate are 2.4 and 0.6 kg of hydrogen per cubic meter of palladium, and that steady-state conditions have been attained.
consider a simple brayton cycle using air as the working fluid has a pressure ratio of 12 has a maximum cycle
a paint mixture containing 25.0 wt of a pigment and the balance water sells for 18.00kg and a mixture containing 12.0
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