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Presume a diode consists of a cylindrical cathode with a radius of 6.200×10    -2cm, mounted coaxially within a cylindrical anode with a radius of 0.5580 cm. The potential dissimilarity between the cathode and anode is 360V. An electron leaves the surface of the cathode with zero initial speed (vinitial=0). Discover its speed v final when it strikes the anode.

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