Several reasons: lightning travels horizontally as well as vertically, it can strike multiple times in quick succession, and the sound is loud enough that it reverbrates from structures, trees, and the ground.
2006-07-22 07:54:48
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answer #1
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answered by DakkonA 3
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When lightning strikes, the air around the lightning expands violently, much like an explosion. Because of this, you get a series of air explosions along the lightning strike. When you hear thunder, you are hearing the sound waves produced by these explosions. Because lightning bolts can span for miles, these explosions can be spaced out over miles, and therefore you don't hear all of these explosions at once. (Remember that the speed of sound is pretty much fixed in air of a constant temperature. This is why you can determine roughly how far away a lightning bolt is by counting the seconds between the flash and the bang.) You hear these explosions one after another.
2006-07-22 14:57:50
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answer #2
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answered by Keiron 3
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Thunder is simply the sound of air molecules crashing into one another after lightning has heated up air during a storm.. the rumbling sound is down to something called the Doppler effect.. IE.. sound is loudest has it approaches you and fades away has it passes you.. Also there is a certain amount of sound reflected back and forth through the atmosphere and surface topography
2006-07-26 11:01:27
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answer #3
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answered by robert x 7
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thunder is created out of law pressure area created on earth due to over heating of certain region due to hot season or climatic disturbance. In such a situation the cold air rushes in to the law pressure none, the hot air usually go up and cool down, where as the cold air whichh rushed in the law pressure zone start moving around in spiral shape, whic creates dangerous sound due to it's extreme speed, again the cooled hot humid air creates heavy clouds, which brings in heavy shower in the region. This is the mechanism of thunder.
2006-07-22 14:59:58
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answer #4
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answered by Anonymous
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The phenomenon of thunder is primarily discharge of electrical charges resulting in arcing and also sound. We see the light first and then hear the sound because of the speed differential.
2006-07-22 15:00:04
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answer #5
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answered by openpsychy 6
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Lightining is hotter than the surface of the sun, and the rapid heating causes the atmospheric air to expand at the speed of sound, producing the "boom" that you hear. Light is faster than sound, so you usually see the ligtning then hear the boom, unless the storm is right on top of you.
2006-07-22 14:59:10
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answer #6
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answered by Anonymous
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