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A flywheel is mounted on a vertical shaft, as shown in Fig. 2.76. The shaft has a diameter d and length l and is fixed at both ends. The flywheel has a weight of W and a radius of gyration of r. Find the natural frequency of the longitudinal, the transverse, and the torsional vibration of the system.
a nitrogen line 300 k and 0.5 mpa shown in the figure is connected to a turbine that exhausts to a closed initially
A perfect gas (methane) undergoes a reversible polytropic process in which the polytrotic exponent is 1.4. 1) Using the first law, arrive at an expression for heat transfer per unit mass solely as a function of the temperature difference (change in T..
the wheel roles without slipping such that at the instant shown it has an angular velocity and angular acceleration.
In a specific type of heat exchanger, a very hot jet of air is cooled from 145 degrees centigrade to 100 degrees centigrade by a cold stream of water. The water temperature must not rise By more than 12 degrees centigrade. Find 1.
Assuming an overall heat transfer coefficient of 2000 W/m2 · K, calculate the required heat transfer areas for the following exchanger configurations:
Ecological footprints measure humankind's demands on nature. Using the Internet, estimate the amount of land and water needed annually to support your con- sumption of goods and services and to absorb your wastes. Prepare a memorandum reporting yo..
a rigid steel bottle v 0.25 m3 contains air at 100 kpa 300 k. the bottle is now charged with air from a line at 260 k
consider a reheat cycle with steam leaving the boiler and entering the turbine at 4 mpa and 400 c . after expanded in
the 25-kg bar bd is attached to the two light links ab and cd and moves in the vertical plane. the lower link is
a supply of steam at 100 kpa 150degc is needed in a hospital for cleaning purposes at a rate of 15 kgs. a supply of
consider a vertical plate of dimension 0.25 m x 0.50 m that is at ts100 c in a quiescent environment at t? 20 c. in
Please include images of: composition cells, stress cells, concentration cells, coatings, inhibitors, sacrificial anodes, impressed voltages, anodic protection, cold worked grain structure and recrystallized grain structure.
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