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Two parallel plates are charged such that there is a 400V potential difference between them. A...

Two parallel plates are charged such that there is a 400V potential difference between them. A proton is fired from a point midway between the plates toward the positive plate. The protons initial speed is 1.5 × 105 m/s. a) Show that this speed is insufficient for the proton to reach the positive plate. b) What is the proton’s speed as it collides with the negative plate? Possibly useful information: mass of a proton = 1.67 × 10−27 kg, charge of a proton = +1.602 × 10−19 C.

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