Question
In: Physics
An instrument used to measure the airspeed on many early low-speed airplanes was a venturi duct...
An instrument used to measure the airspeed on many early low-speed airplanes was a venturi duct with a convergent-divergent duct (the front section's cross sectional area decreases in the flow direction, and the back section's cross sectional area increases in the flow direction. There is a "throat" in which the area is minimum.). Let A1 and A2 denote the inlet and throat areas, respectively. Let P1 and P2 denote the pressure at the inlet and throat, respectively. If the area ratio is A2/A1 = 1/4 and P1 - P2 = 80 lb/ft2. If the aircraft is flying at standard sea level, what is the velocity in knots?
Solutions
genius_generous answered 1 month agoRelated Solutions
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(a) A car traveling faster than average.
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145 82 153 (a) Make a scatter diagram of the data and visualize the
line you think best...
Can a low barometer reading be used to predict maximum wind speed of an approaching cyclone?...
Can a low barometer reading be used to predict maximum wind
speed of an approaching cyclone? Data for this problem are based on
information taken from Weatherwise, a publication of the American
Meteorological Society. For a random sample of tropical cyclones,
let x be the lowest pressure (in millibars) as a cyclone
approaches, and let y be the maximum wind speed ( in miles per
hour) of the cyclone x 1004 975 992 935 985 932 Y 40 100 65...
Can a low barometer reading be used to predict maximum wind speed of an approaching tropical...
Can a low barometer reading be used to predict maximum wind
speed of an approaching tropical cyclone? For a random sample of
tropical cyclones, let x be the lowest pressure (in
millibars) as a cyclone approaches, and let y be the
maximum wind speed (in miles per hour) of the cyclone.
x
1004
975
992
935
982
924
y
40
100
65
145
68
153
Use a calculator to verify that Σx = 5812,
Σx2 = 5,635,030, Σy = 571,...
Can a low barometer reading be used to predict maximum wind speed of an approaching tropical...
Can a low barometer reading be used to predict maximum wind
speed of an approaching tropical cyclone? For a random sample of
tropical cyclones, let x be the lowest pressure (in
millibars) as a cyclone approaches, and let y be the
maximum wind speed (in miles per hour) of the cyclone.
x 1004 975 992 935 976 928
y 40 100 65 145 75 146
(b) Use a calculator to verify that Σx = 5810,
Σx2 = 5,630,690, Σy =...
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Many early video artists used ___.
1. still photographs
2. magnetic tape that records both image and sound
3. motion capture technology
4. computer programming
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