Question: A proton has an initial speed of 5.5 105 m/s. (a) What potential difference is required to bring the proton to rest? (b) What

A proton has an initial speed of 5.5 × 105 m/s.

(a) What potential difference is required to bring the proton to rest?

(b) What potential difference is required to reduce the initial speed of the proton by a factor of 2?

(c) What potential difference is required to reduce the initial kinetic energy of the proton by a factor of 2?

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