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Q. If the electric field has a magnitude of 450 and the magnetic field has a magnitude of 0.19 , what speed must the particles have to pass through the selector undeflected?

Q. A .4 kg bead slides on a curved frictionless wire starting from rest at point A. At point B the bead collides elastically with a .6 kg bead at rest. find the distance the bead moves up the wire?

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