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Question
An airfoil generates a lift of 80 N when operating in a freestream flow of 60 m/s. If the ambient pressure and temperature are 100 kPa and 290 K respectively (specific gas constant is 287 J/kg-K), the circulation on the airfoil in m2/s is ____.
Options:
A .  0.5 to 0.7
B .  2.1 to 2.2
C .  1.1 to 1.2
D .  1.2 to 1.3
Answer: Option C


-NA-



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