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A vertical shaft passes through a bearing and is lubricated with an oil having a viscosity of 0.2 N s/m2 as shown in Fig. P6.99. Assume that the flow characteristics in the gap between the shaft and bearing are the same as those for laminar flow between infinite parallel plates with zero pressure gradient in the direction of flow. Estimate the torque required to overcome viscous resistance when the shaft is turning at 80 rev/min.
Name the two electrical circuits used in strain gauge circuits in stress analysis in mechanical engineering
the work on a system with a mass 100 lbm is known to be 10 btus. if there is no change in potential energy and the
a hypersonic gun tunnel is used to generate short-duration high-speed flows and typically consists of two cylindrical
a strip of material 1 inch wide w and initially 116 in. thick is compressed between flat dies to one half its original
Calculate the boundary-layer thickness at the exit of the wind tunnel at section 2. Also calculate the exit velocity u2.
Determine the moment about O of this tension as applied to point A of the slender bar - determine the angle () which causes the most severe bending strain.
water flows from a storage tank through a horizontal 6-inch pipe cast iron and discharges water 20 degrees celsius into
a solar-thermal-electric power plant collects energy from sunlight focused on a high-temperature collector where solar
Figure 5.19 shows a pump partially submerged in oil (sg = 0.90) and supported by springs. If the total weight of the pump is 14.6 lb and the submerged volume is 40 in3, calculate the supporting force exerted by the springs.
Assuming that the middle cantilever supports 50% of the load and each outer cantilever supports 25% of the load, determine the required dimensions b and h.
Neglecting radiation and assuming steady-state conditions, calculate the surface temperature of the droplet if the ambient air temperature is 300 K. The latent heat of vaporization is 8.42 X 105 J/kg.
a piston-cylinder containing 1 kg air at 500degc and 500 kpa is connected to a carnot heat engine where the environment
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