Uniform electric and magnetic fields with strength E and induction B respectively are directed along the y axis (Fig. 3.101). A particle with specific charge q/m leaves the origin O in the direction of the x axis with an initial non-relativistic velocity v0. Find: (a) the coordinate yn of the particle when it crosses the y axis for the nth time; (b) the angle α between the particle's velocity vector and the y axis at that moment. Solution: |

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