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Q. In a cathode-ray tube, a beam of electrons is projected horizontally with a speed of 1.0x10^9 cm/s into a region between a pair of horizontal plates 2.00 cm long. An electric field between the plates causes the constant downward acceleration of the electrons of magnitude 1.0x1017 cm/s2. Find (a) time required for the electrons to pass through the plates, (b) vertical displacement of the beam in passing through the plates, and (c) components of the velocity of the beam is it emerges from the plates.

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