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Compare air and helium as cooling media for electronic devices. Both fluids must exit through an area of 0.025 m^2. The exit temp is limited to 60 c the inlet temp can be as low as 10 c and as high as 25 c . Heat is released at a rate of 1 kW. The inlet area is so large that the inlet velocity is negligible. Treat both helium ans air as ideal gasses.
Determine the rate of heat loss from the molten salt per meter length of the pipe.
Determine the number of revolutions that the motor executes in a) reaching its rated speed, b) coasting to rest.
a charged particle with a charge-to-mass ratio of qm 5.7 108 ckg travels on a circular path that is perpendicular to a
a tank has a volume of 0.35m3 and initially contains saturated vapor at 333 kpa. the valve is next opened and steam
the given figure depicts an indirectly fired gas turbine engine. in the gas turbine engine air is compressed to a high
a stack gas flowing at 80 m3min at t 25 degree c and 1 atm contains approximately 75 n2 5 o2 8 h2o and 12 co2. a
At a given instant in time, flywheel OA is caused to rotate with angular velocity of w=2rad/sec and angular acceleration of alpha=6rad/s2. determine the angular velocity of links AB and BC at this instant in time. AB=.5m, BC=.4m, OA=.3m
Determine the reactions of simply supported beam to both a concentrated and uniform load. A beam with a span of 21 ft is simply supported at the left-hand end and fixed at the right-hand end.
a bullet of mass 0.06 kg is fired horizontally into a wooden block of mass 0.10 kg. the wooden block is suspended from
one pound mass of water in a piston-cylinder assembly initially a saturated liquid at 1 atm undergoes a
Using a centrifugal pump, and a flow rate of 60 gal/min, calculate the break hp of the pump using water with a density of 62.4lbm/ft3 and do the same for a nonviscous liquid having a density of 0.85g/cm3.
two tanks are connected by a valve and line as shown below. the volumes are both 1 m3. tank anbspcontains r-134a at
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