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Feb 10, 2013 at 5:03 history closed David Z exact duplicate
Mar 12, 2012 at 10:15 comment added David Z This seems to be a duplicate of physics.stackexchange.com/q/20333 which itself may be a duplicate of physics.stackexchange.com/q/7479.
Mar 12, 2012 at 8:31 vote accept vikiiii
Mar 12, 2012 at 7:17 history edited Qmechanic CC BY-SA 3.0
Removed greeting; It seems the homework tag applies even if it is not actual homework because of its educational value.
Mar 12, 2012 at 7:10 history edited Bernhard
edited tags
Mar 12, 2012 at 7:09 answer added Bernhard timeline score: 3
Mar 12, 2012 at 7:09 answer added John Rennie timeline score: 7
Mar 12, 2012 at 6:54 history asked vikiiii CC BY-SA 3.0