Physics, 25.03.2020 06:13, flowersthomas1969

A beam of electrons moving in the x-direction enters a region where a uniform 208-G magnetic field points in the y-direction. The boundary of the field region is perpendicular to the beam. If the beam penetrates 3.45 mm into the field region, what's the electrons' speed

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A beam of electrons moving in the x-direction enters a region where a uniform 208-G magnetic field p...