Engineering, 14.09.2019 05:10, jlong2043
An airfoil naca 2421 is tested in a wind tunnel with a reynolds number equal to 1,900,000. what is the lift coefficient for 14º? a. 0.93 b. 0.98 c. 1.24 d. 1.39 e. 1.48
Answers: 3
Engineering, 04.07.2019 18:10, settasav9641
Abrake has a normal braking torque of 2.8 kip in and heat-dissipating cast-iron surfaces whose mass is 40 lbm. suppose a load is brought to rest in 8.0 s from an initial angular speed of 1600 rev/min using the normal braking torque; estimate the temperature rise of the heat dissipating surfaces.
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Engineering, 04.07.2019 18:10, heidiburgos1own6c0
Fluids at rest possess no flow energy. a)- true b)- false
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Engineering, 04.07.2019 18:10, skpdancer1605
Ariver flows from north to south at 8 km/h. a boat is to cross this river from west to east at a speed of 20 km/h (speed of the boat with respect to the earth/ground). at what angle (in degrees) must the boat be pointed upstream such that it will proceed directly across the river (hint: find the speed of the boat with respect to water/river)? a 288 b. 21.8 c. 326 d. 30.2
Answers: 3
An airfoil naca 2421 is tested in a wind tunnel with a reynolds number equal to 1,900,000. what is t...
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