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antcow 2008-06-19 11:05 PM

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Kaili 2008-06-19 11:05 PM

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TRG-pro 2008-06-19 11:12 PM

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kauman 2008-06-19 11:24 PM

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antcow 2008-06-19 11:29 PM

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§õ³Á«È 2008-06-19 11:39 PM

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Axel_K 2008-06-19 11:41 PM

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yider 2008-06-20 12:08 AM

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Adsmt 2008-06-20 12:57 AM

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10,000,000 = 1/2 a t^2 = 1/2 a (900)^2

a = 24.69 m/s^2

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·¥³t¬O 24.69 m/s^2 * 900s = 22.22 km/s

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