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![[Post New]](/templates/default/images/icon_minipost_new.gif) 23 May 2008 12:28:48 IST
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protons in the cosmic rays strike the earth's upper atmsphere at a rate ,averaged over the earth's surface,of 0.15 protons/cm2-sec.What total current doea the earth receive from beyond its atmosphere in the form of incident cosmic ray protons??The earth's radius is 6.4x106meters
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Moderation Team
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