It happens at all speeds, but is not perceived as the flowing air will also absorb the heat and push it away.
2006-06-17 04:46:33
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answer #1
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answered by Garth 6
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But for friction the object moving against air resistance will be moving with some greater speed. That means the speed of the body is reduced. Work is done by the force of friction. That is energy is expended. This energy is released in the form of heat and sound.
Therefore the object and air are heated, whatever is their relative speed.
2006-06-17 05:07:25
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answer #2
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answered by Pearlsawme 7
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Air friction can cause tremendous heat. Note the heat shield on Apollo capsules and the space shuttle. The SR71 grows about a foot due to the expansion of its fusilage due to heat. Speed depends on altitude since there is greater friction at lower levels than higher.
2006-06-17 04:51:39
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answer #3
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answered by williegod 6
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Absolutly. When the Space Shuttle reenters the Earth Atmosphere the friction and angle of re-entry on the atmosphere causes and incredible amount of heat. At what exact speed.. i dont know. But the faster the more friction.
2006-06-17 04:48:21
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answer #4
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answered by MacktheKnife 1
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"Wind kick back" is a mixture of conduction and convection. a guy or woman sweats and the evaporation area replace it particularly is sped up by utilising the wind, reasons an absorption of warmth power from the exterior tissue around the sweat. (conduction). needless to say the ball won't sweat, and for this reason this result may well be factored out. however the wind additionally will strengthen compelled convection which will rapidly circulate warmth faraway from the ball. Assuming the ball is heat - warmer than the ambient temperature - The ball may well be cooled by utilising convection basically to the element the place the ball and the ambient temperature have become an identical fee. of path, technically it may on no account be cooled to this top element because of the fact the air temperature is a cut back and larger the negligible volume of air friction will avert those 2 values from ever completely coinciding.
2016-12-08 21:59:48
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answer #5
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answered by zabel 4
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Fluid friction does generate heat.
However, the high temperatures seen at the leading surfaces of supersonic aircraft, the space shuttle orbiter during reentry, etc., result from shock heating.
Bodies moving at supersonic speeds compress air into a shockwave ahead of their leading surfaces. The compression leads to very high shock wave temperatures through adiabatic and entropic heating.
At extremely high speeds, thermal radiation accounts for most of the heat transfer from the shock wave to the object (vehicle).
2006-06-17 05:44:01
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answer #6
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answered by Ethan 3
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At the speed of sound and above 90 degrees to the north.
2006-06-17 04:46:12
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answer #7
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answered by Kenneth Koh 5
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Friction of any kind causes heat. Friction is, in simple terms, what happens to two pieces of matter rub together. Even though you cant see it or touch it persay, Air is matter.
2006-06-17 04:48:48
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answer #8
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answered by John C 2
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i fell nice to answer this:- heat produced is so high that it can burn a NASA spaceship coming to land on earth if they have a hole in the covering of the shuttle........................ speed is in thousands and temp. is more than 5000 degrees
2006-06-17 04:48:28
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answer #9
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answered by prince12490 2
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yeah, any spead but more with more speed i imagine.
2006-06-17 04:45:21
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answer #10
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answered by Anonymous
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