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Helium at 70.0°F enters a 3.00 ft3 rigid tank that is filled to a final pressure of 2200. psia.
Assuming the tank is initially evacuated and that the helium behaves as an ideal gas with constant specific heats, determine the amount of entropy produced when the tank is filled (a) adiabatically and (b) isothermally at 70.0°F.
Determine the heat transfer between the reactor and its surroundings, in kJ per kmol of propane entering. Neglect kinetic and potential energy effects.
Calculate the permittivity of the dielectric if at this angle there is total reflection from the surface. Assume the dielectric has permeability of free space.
find a cylindrical container that is large enough that it takes at least one minute to drain you may have to create an
Then compute the solidification time of a 0.5inch by 8inch by 8inch casting poured under the same conditions?
The landing gear on a commercial aircraft experiences an impulse load upon landing. Assuming seven such landings per day on average, how long would it take before the landing gear has been subjected to 108 load cycles? (Answer in years)
Refrigerant 134a enters a compressor at 280KPa at 20kg/s as a saturated vapor. it exits at 60 deg.C and 1.2MPa. Determine the rate of total entropy change and the isentropic efficiency of the compressor?
Determine the maximum shear stress developed in the shaft.
Determine the tangential force F and the normal force N acting on the collar when u. = 45°, if the force F maintains a constant angular motion u = 2 rad>s.
a well-insulated piston-cylinder assembly is connected by a valve to an air supply line at 8 bar. initially the air
a firm is considering two alternatives that have no slavage value.alternative ainitial cost- 10700uniform annual
Shop order 7777 is for 600 of part 8900. From the routing file, it is found that operation 20 is done on work center 300. The setup time is 3.5 hours, and run time is 0.233 hours per piece. What is the required capacity on work center 300 for shop..
A rotating saw blade has 48 teeth and 4 slots. If the room where the saw is used is illuminated with a pulsed light source, at what pulse frequencies will a) the saw blade teeth appear to be stationary? b) The blade slots appear stationary? c) Will t..
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