A-3.25 consider a naca 2415 airfoil section in a low-speed wind tunnel. assume re 9 x 106 a) what is the zero-lift angle of attack? b) does this airfoil have negative or positive camber? c) what is the stalling angle of attack? d) what is the maximum value of ci? e) what is the lift-curve slope?
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Which statement correctly describes a step-up transformer? a. it increases the amount of electric energy available. b. it increases the voltage of an electric current. c. it changes direct current into alternating current. d. it has more loops of wire in its primary coil.
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1kg of water needs to recieve 4200j of energy to go from 90 degrees to 91 degrees. what is the specific heat capacity of water? what are the units?
Answers: 1
A-3.25 consider a naca 2415 airfoil section in a low-speed wind tunnel. assume re 9 x 106 a) what is...
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