Ryan

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visits member for 1 year, 9 months
seen Sep 29 '12 at 19:18

May
4
awarded  Popular Question
Sep
29
awarded  Student
Sep
29
awarded  Editor
Sep
29
revised A chain 64 meters long whose mass is 20 kilograms is hanging
added 120 characters in body
Sep
29
asked A chain 64 meters long whose mass is 20 kilograms is hanging