Physics, 26.08.2021 15:20 mamdouh2893
A static test stand is to be designed for testing a diffuser of a jet engine. The following conditions are known for the test: 50 kg/s of air enter a diffuser at a velocity of 750m/s and static pressure of 20kPa. The air leaves the diffuser at a velocity of 90 m/s and static pressure of 330 kPa. The entrance area of the diffuser is 0.25 m2and the exit area is 0.28 m3. Determine the magnitude and direction of the strut force necessary to hold the diffuser stationary when this diffuser is operated in an atmospheric pressure of 20 kPa.
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Physics, 21.06.2019 20:20
Ateam of astronauts is on a mission to land on and explore a large asteroid. in addition to collecting samples and performing experiments, one of their tasks is to demonstrate the concept of the escape speed by throwing rocks straight up at various initial speeds. with what minimum initial speed vesc will the rocks need to be thrown in order for them never to "fall" back to the asteroid? assume that the asteroid is approximately spherical, with an average density p 3.84 x108 g/m3 and volume v 2.17 x 1012 m3 recall that the universal gravitational constant is g 6.67 x 10-11 n m2/kg2
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Physics, 22.06.2019 04:40
Which statement best describes copper? a. it has a low resistance and prevents charges from moving freely. b it has a high resistance and allows charges to move freely. c. it has a high resistance and prevents charges from moving freely. d. it has a low resistance and allows charges to move freely
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Physics, 22.06.2019 09:30
True or false graphs must include scales that increase by the same amount
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A static test stand is to be designed for testing a diffuser of a jet engine. The following conditio...
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