Protons in the cosmic rays strike the earth’s upper atmosphere at a rate, averaged over the earth’s surface, of 0.15 protons/cm2 -sec. What total current does the earth receive from beyond its atmosphere in the form of incident cosmic ray protons? (Earth’s radius = 6.4×106 meters).
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Protons in the cosmic rays strike the earth’s upper atmosphere at a rate, averaged over the earth’s surface, of 0.15 protons/cm2 -sec. What total current does the earth receive from beyond its atmosphere in the form of incident cosmic ray protons? (Earth’s radius = 6.4×106 meters).
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