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Water vapor at 100 lbf/in^2, 500 degrees F and a velocity of 100 ft/s enters a nozzle operating at steady state and expands adiabatically to the exit, where the pressure is 40 lbf/in^2. If the isentropic nozzle efficiency is 95%, determine for the nozzle (a) the velocity of the steam at the exit, in ft/s and (b) the amount of entropy produced, in Btu/degree R per lb of steam flowing.
If an identical spring is cut so that one part is one-fourth and the other part three-fourths of the original length, and the mass m is connected to the two parts, what would be the natural period of the system?
1. compare liquids and gases with regard to theirbull shapebull volume occupiedbull densitybull viscositybull
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a closed rigid tank whose volume is 1.5m3 contains refrigerant 134a initially a two-phase liquid-vapor mixture at 10
1kg of superheated r-134a at 10 bar and 150oc is cooled and condensed in a cylinder at constant pressure. how much heat
refrigerant r-134a with a mass of 0.08 kg is expanded adiabatically from a superheated vapor at 10 bar 40 c to a
a single unit of product a requires 2.4 minutes of punch press time and 5.0 minutes of assembly time. the profit for
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consider an air standard otto cycle with a compression ratio of 8. the engine inlet conditions are p100 kpa t290k and
three kg of gas in a piston cylinder assembly undergo a process during which the relationship between pressure and
the cylinder-piston arrangement contains carbon dioxide at 300kpa and 200 degrees celsius and the volume 0.2m3. weight
it is desired to prepare an emulsion in a baffled 4 in number tank using standard flat-blade disc turbine. the tank is
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