Question

Protons in cosmic-rays strike the earth's upper atmosphere at a rate, average over the earth's surface of 10 protons ms. What total current does the earth receive from beyond its atmosphere in the form of incident cosmic ray protons ? The earth's radius is 6-4 x 10° m.

Answer 1

Explanation:

Protons in cosmic-rays strike the earth's over the earth's surface of 10 protons m^(-2)s^(-1).