1. The problem statement, all variables and given/known data The average intensity of sunlight reaching the earth is 1390 W / m2. A charge of 1.60 10-8 C is placed in the path of this electromagnetic wave. (a) What is the magnitude of the maximum electric force that the charge experiences? 1.637 N (b) If the charge is moving at a speed of 6.00 104 m/s, what is the magnitude of the maximum magnetic force that the charge could experience? I got part A, but I cannot figure out what to do next: Savg - inensity c - speed of light 3e8 ε0 - permittivity of free space 8.854e-12 Erms formula: Erms = √(Savg / c * ε0) = 723.3975, Erms = 1/√2 * E0 Erms / .707 = 1023.038 E0 = 1023.038 E0 * q = F F = 1.637e-5 am I suppossed to muliply by the speed? Cause it shows a wrong answer when i do that. I cannot seem to find the right formula. I am just not sure....? Thanks.