Logically I would say heat because the molecules of anything would be further apart then in a cold surrounding. In cold the molecules are less excited and therefore closer to a solid state causing a slow of speed.
2006-12-27 12:27:47
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answer #1
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answered by mojo2093@sbcglobal.net 5
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Your question did not state what speed your are referring to, but I think I understand what you are asking.
I will answer with the "speed of sound." Sound travels faster in hot fluid (air or water) than in a cold fluid. The heat causes the molecules of the fluid to move faster and spread apart. This is why the air is thinner on a hot day than a cold day. In fact, airplanes need more airspeed to take off on a hot day than a hold one.
Here is a more scientific way to express the answer:
"Kinetic energy (energy of motion) moves through a hot fluid faster than a cold fluid."
Some types of energy, such as light, move at the same speed regardless of the temperature of the fluid they are passing through.
2006-12-27 20:39:31
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answer #2
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answered by jordannadunn 2
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Logically I would say heat because the molecules of anything would be further apart then in a cold surrounding. In cold the molecules are less excited and therefore closer to a solid state causing a slow of speed.
2006-12-28 01:01:19
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answer #3
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answered by catch me 2
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Speed of what? Light, sound, objects?
You don't have a project without answering this first.
2006-12-27 20:35:24
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answer #4
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answered by Anonymous
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think of it like this, cold=ice, if you were inside an ice you cannot move. so speed travels faster in heat. and i agree with the first guy that answered.
2006-12-27 20:37:06
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answer #5
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answered by rockbabe 2
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Speed is speed, independant of temperature.
Assuming you mean sound... Sound travels slower in a denser medium. Cold air is more dense than hot air, so sound will travel slower in colder air.
2006-12-27 20:28:41
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answer #6
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answered by Warren914 6
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SPEED is a word. You need an object to do the traveling at A speed.
2006-12-27 20:28:23
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answer #7
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answered by Mad Dog Johnson 4
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Same speed.
2006-12-27 20:28:16
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answer #8
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answered by nagant39@sbcglobal.net 2
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