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  1. F

    Exploding shoes

    Near earth, the density of protons in the solar wind is 10.0cm^-3, and their speed is 691 km/s. a) find current density of these protons b) what current in amperes does earth recieve a. To find the current density I need to multiply (nLA)e then after i get I divide it by A The...
  2. F

    Simple conversion I thought?

    Near earth, the density of protons in the solar wind is 10.0cm^-3, and their speed is 691 km/s. To find the current density I need to multiply (nLA)e do i need to convert 10.0 protons cm^-3 to 10000000m^-3 because i tried that and it didnt work???? thanks.
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