Engineering, 29.10.2019 21:31 SynysterWxlf661
2. naca 2412 airfoil has a zero lift angle of -2.1 degree and a lift curve slope of 2 (if the alpha is expressed in radians). the pitching moment coefficient at the quarter chord is -0.036. compute the lift and pitching moment at quarter chord at a 4 degree angle of attack if the freestream velocity is 50 feet sec, and the chord is 2 feet. assume sea level conditions. (ans: 3.8 lb per foot of span, -0.428 ft. lb per foot of span)
Answers: 1
Engineering, 03.07.2019 15:10, EmilySerna
Heat is added to a piston-cylinder device filled with 2 kg of air to raise its temperature 400 c from an initial temperature of t1 27 cand pressure of pi 1 mpa. the process is isobaric process. find a)-the final pressure p2 b)-the heat transfer to the air.
Answers: 1
Engineering, 04.07.2019 18:10, hadellolo8839
Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false
Answers: 3
Engineering, 04.07.2019 18:10, yasminothman02
An air conditioning system consist of a 5 cm diameter pipe, operating at a pressure of 200 kpa. the air initially enters the pipe at 15°c with a velocity of 20 m/s and relative humidity of 80%. if the heat supply throughout the process is 960 w, determine the relative humidity and the temperature at the outlet
Answers: 3
2. naca 2412 airfoil has a zero lift angle of -2.1 degree and a lift curve slope of 2 (if the alph...
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