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![[Post New]](/templates/default/images/icon_minipost_new.gif) 3 Feb 2008 01:45:39 IST
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Simply use energy conservation.
KE = PE
5 MeV = 2ke(92e)/r^2
Solve for r. Thats the ans
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"If you win, you shall not have to explain and if you lose, you wont be there to explain"
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