Submited on: 12 May 2011 11:47:04 AM GMT
Published on: 13 May 2011 08:14:25 AM GMT
importan questions
Posted by Mr. Ibrahim S Nasef on 14 Jul 2011 09:08:20 PM GMT

sir

i want to know what is k in the equation and what happen if we increase or decrease it

i want to know also what is E in the equation and how we determine it

really i want answers

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