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2012-05-08 11:09:59
+15   Skylar! voted up your question "A 4 kg rock is rolling 10 m/s...."
2012-05-08 11:09:07
+15   pythonlover voted up your question "A 4 kg rock is rolling 10 m/s...."
2012-05-08 11:08:57
+15   Colleen voted up your question "A 4 kg rock is rolling 10 m/s...."
2011-04-19 23:47:35
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