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The tip of a 2-m-long slender rod with lateral surface insulated is dipped into a hot liquid at 200?C. What differential equation describes the temperature? After a long time, what is the temperature distribution in the rod if the other end is held at 0?C? The lateral surfaces of the rod are insulated.
Determine the flow coefficient and stage loading factor at the mean radius and the reaction at the hub, radius 0.31 m, at the design speed of 8000 rev/min, given that stage is to have a free-vortex swirl at this speed. You may assume that losses a..
the yield stress of a tension specimen machined from a 0.5 m wide by 0.6 cm thick copper sheet is 145 mpa. the sheet is
A gas mixture at 675.0°C and 113 kPa absolute enters a heat exchanger at a rate of 69.0 m3/hr. The gas leaves the heat exchanger at 245.0°C. The change in enthalpy of the gas during the cooling process is -6.80 kJ/mol.
Geoffrey is building an electronic circuit on a breadboard. He needs to supply his circuit with a 1500 ohm resistance. But he does not have any 1500 ohm resistors on hand. All he has is a box of 1000 ohm resistors.
an air conditioner operating at steady-state takes in moist air at 27 oc 1 bar and 70 relative humidity. the moist air
Four kg of water at 100°C fill a closed container having a volume of 1 m3. If the water at this state is a vapor, determine the pressure, in bar. If the water is a two-phase liquid-vapor mixture, determine the quality.
in a rigid tank water is heated by a benson burner while being stirred by a paddle wheel. initially the internal energy
an 8-kg iron casting at 550 degc is quenched in a tank containing 0.03 m3 of liquid water initially at a temperature of
Discuss why the torque characteristics of a bifilar-wound motor are better than those of a unifi lar-wound motor at high stepping rates.
The engine dissipates a lot of heat which calls for a cooling mechanism. Explain the engine cooling mechanism
a linear motor is built utilizing neodymium permanent magnets supplying a magnetic field of .75t rails with an average
a can of soft drink at room temperature is put into the refrigerator so that it will cool. would you model the can of
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