Meteors are not big enough to exert a gravitational force over itsely to become a sphere. Moreover meteors are formed by debris caused by disintegration of a part of a planet or a satellite.
2007-06-27 04:46:57
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answer #1
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answered by vasudev309 2
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For the same reason why a wrench is not round, even though it has its own gravity. The gravitation pull exerted by relatively small bodies isn't strong enough to overcome the structural integrity the bodies may have. If an asteriod were liquid, then it'd become round. As bodies get larger, gravitational forces increases, but the ultimate strength of materials remain constant. A stack of bricks high enough will eventually shatter the bricks at the bottom and turn them into powder.
2007-06-26 21:21:34
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answer #2
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answered by Scythian1950 7
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Instead of asking about meteors, think about the Earth and how it is not a complete round circle. Gravity is acting upon Earth but in greater amounts.
2007-06-26 21:19:14
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answer #3
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answered by Anonymous
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Mountains max size is constant (max 28 km on Mars), because when it is higher it subsides (weight and molecular forces effect : the mountain melt on his basis).
A body is said round when mountains are quite lower (a hundred times) than the body itself. Because mountains have about same max size as meteors, meteors can not be round (by definition of roundness).
2007-06-26 21:23:11
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answer #4
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answered by Scanie 5
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Meteors hardly have had the lifespan that planets and moons have had to form into a reasonably round ball. They're chucks of exploded stars, etc. And most do not have that great a gravity, if any at all.
2007-06-26 21:25:06
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answer #5
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answered by The one with a tail... 5
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forget about meteors dude. Find out why earth is not a perfect sphere.
2007-06-26 21:24:15
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answer #6
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answered by Anonymous
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This is because travelling through our atmosphere causes them to super-heat and flatten out when landing at great impact. If they don't disintegrate first.
2007-06-26 21:21:30
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answer #7
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answered by Dan K 5
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