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1. Air enters a nozzle steadily at 50 psia, 140°F, and 150 ft/s and leaves at 14.7 psia and 900 ft/s. The heat loss from the nozzle is estimated to be 6.5 Btu/lbm of air flowing. The inlet area of the nozzle is 0.1 ft2 . Determine
(a) the exit temperature of air and
(b) the exit area of the nozzle
2. The stators in a gas turbine are designed to increase the kinetic energy of the gas passing through them adiabatically. Air enters a set of these nozzles at 300 psia and 700°F with a velocity of 80 ft/s and exits at 250 psia and 645°F. Calculate the velocity at the exit of the nozzles.
What is the average length of a line inside the unit square? Verify your answer by generating ten million random lines in the unit square and averaging their lengths.
Describe a situation in a work environment where the use of macros would improve efficiency in processing data in Excel. Identify the likely challenge(s) you would face in developing the macros, and suggest a plan for addressing the challenge.
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give an example of a real-time application that is intolerant/rate adaptive.
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That is, what is the value for X when an exhaustive read of the file is more efficient than random X reads? Develop this as a function of X.
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Carry out a SWOT analysis on the viability of upgrading to Server 2008.
Define memory. Describe types of memory, including implicit and explicit memory and declarative and procedural memory.
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