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A long rod passes through the opening in an oven having an air temperature of 400°C and is pressed firmly onto the surface of a billet (Fig. P16.46). Thermocouples imbedded in the rod at locations 25 and 120 mm from the billet register temperaturesof 325 and 375°C, respectively. What is the temperature of the billet?
refrigerant-134a enters the expansion valve of a refrigeration system at 160psia as a saturated liquid and leaves at
Calculate with the Peng-Robinson equations for thermodynamic properties, the product compositions, stage temperatures, interstage flow rates and compositions, reboiler duty, and condenser duty for the distillation specifications
an object moves with constant acceleration 4.20 ms2 and over a time interval reaches a final velocity of 12.6 ms. a if
the city of mcallen has a water filtration system that consists of a large rigid tank with a single 0.32 m diameter
Consider an electron in the first Bohr orbit of a hydrogen atom. What is the radius (in meters) of this orbit? What is the total energy (in eV) of the electron in this orbit?
A common problem with system building occurs when physical file names are incorporated in system code and the file structure implied in these names differs from that of the target machine. Write a set of programmer's guidelines that helps avoid th..
The tungsten filament in a lamp has a diameter of 0.003 in and is 6-in long. When it is maintained at 2900K, what is the amount of energy emitted by the filament if the emissivity of the filament is 0.3? If the surroundings are at 20oC, what is the e..
1. what is the second law of thermodynamics?2. what is isentropic flow and what are the two key assumptions required?3.
a structural support is installed within a space craft. the support is made of 7075-t6 aluminum plut t-ult 250 mpa and
Assume E=31 ,000 MPa and ν=0.2 εa=-222x10-6 , εb=-213x10-6 , εc=45x10-6 Where gauges a, b and c are in line with, at 450 to and perpendicular to the centroidal axis of the column, respectively.
A generator with a surface area of 30 m2 operating at steady state rotates a shaft at 2000 rpm producing a torque of 20,000 N-m and creates a current of 230 amps at 10,000 Volts. If the ambient temperature is 27 0C and the coefficient of heat transfe..
the boats position during the interval of time from t 2s tp t 10s is given by s 4t1.6t2-0.08t3 ma detremine the boats
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