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###### The figure shows a velocity selector that can be used to measure the speed of a...

The figure shows a velocity selector that can be used to measure the speed of a charged particle. A beam of particles is directed along the axis of the instrument. A parallel plate capacitor sets up an electric field *E*, which is oriented perpendicular to a uniform magnetic field *B*. If the plates are separated by 2.0 mm and the value of the magnetic field is 0.60 T, what voltage between the plates will allow particles of speed 5.0

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