Engineering, 18.12.2019 01:31 sissygirl0807
"consider a rectangular wing mounted in a low-speed subsonic wing tunnel. the wing model completely spans the test-section so that the flow "sees" essentially an infinite wing. if the wing has a naca 23012 airfoil section and a chord of 0.3 m, calculate the lift, drag, and moment about the quarter-chord per unit span when the airflow pressure, temperature, and velocity are 1 atm, 303 k, and 42 m/s, respectively. the angle of attack is 8°.
Answers: 1
Engineering, 04.07.2019 18:10
Water at 70°f and streams enter the mixing chamber at the same mass flow rate, determine the temperature and the quality of the exiting stream. 0 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia. if both streams enters the mixing chamber at the same mass flow rate, determine the temperature and the quality of the existing system.
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Engineering, 04.07.2019 18:10
During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false
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Engineering, 04.07.2019 18:10
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Engineering, 04.07.2019 18:10
Which of the following controllers anticipates the future from the slope of errors over time? a)-proportional b)-on/off c)-integral d)-derivative.
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"consider a rectangular wing mounted in a low-speed subsonic wing tunnel. the wing model completely...
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