At a point high in the Earth’s atmosphere, He2+ ions in a
Chapter 16, Problem 51P(choose chapter or problem)
(III) At a point high in the Earth’s atmosphere, \(\mathrm{He}^{2}+\) ions in a concentration of \(2.8 X 10^{12} / m^{3}\) are moving due north at a speed of \(2.0 X 10^{6} \mathrm{~m} / \mathrm{s}\). Also, a \(7.0 X 10^{11} / \mathrm{m}^{3}\) concentration of \(O_{2}^{-}\) ions is moving due south at a speed of \(7.2 X 10^{6} \mathrm{~m} / \mathrm{s}\). Determine the magnitude and direction of the net current passing through unit area \(\left(A / m^{2}\right)\).
Equation Transcription:
Text Transcription:
He^2+
2.8 X 10^12/m^3
2.0 X 10^6m/s
7.0 X 1011/m3
O^2-
7.2 X 10^6m/s
(A/m^2)
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