Physics, 02.03.2020 21:22 mjr2002june
When an airplane takes off it sheds a starting vortex. We have been using a horseshoe vortex model for the finite wing, but a square closed loop might be more realistic. Estimate the downwash velocity induced at the center of the wing by the starting vortex for a small plane (mass 1000 kg, wingspan 11 m, speed at takeoff 25m/s) for a distance from the starting vortex to the wing of 10 m, 100 m, and 1000 m. Comment on the magnitude of the effect. Assume standard atmospheric conditions and neglect the ground effect.
Answers: 3
Physics, 22.06.2019 01:00, raweber
Avehicle has an oil leak that is causing the entire oil pan to be wet, but inspection reveals no exact source after cleaning off the oil residue. technician a says to install a fluorescent dye in the crankcase and operate the engine, then re-inspect for leaks with a special light (black light). technician b says the oil leak may be coming from a source at the top of the engine, such as a valve cover gasket. who is correct?
Answers: 1
Physics, 22.06.2019 04:30, elizabethseoane1829
You are traveling in a car going at a constant speed of 100km/h down a long, straight highway. you pass another car going in the same direction which is traveling at a constant speed of 80km/h. as measured from your car's reference frame this other car is traveling at −20km/h. what is the acceleration of your car as measured from the other car's reference frame? what is the acceleration of the other car as measured from your car's reference frame?
Answers: 2
Physics, 22.06.2019 06:30, angelinaranee15
Work = force × a. work b. energy c. distance d. momentum
Answers: 1
When an airplane takes off it sheds a starting vortex. We have been using a horseshoe vortex model f...
Biology, 11.03.2022 17:20
Social Studies, 11.03.2022 17:20
Chemistry, 11.03.2022 17:20
Chemistry, 11.03.2022 17:20
English, 11.03.2022 17:20
Mathematics, 11.03.2022 17:20
Physics, 11.03.2022 17:20
Advanced Placement (AP), 11.03.2022 17:20