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A proton has an initial speed of 3.6×105 m/s a) What potential difference is required to...

A proton has an initial speed of 3.6×105 m/s

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

(b) What potential difference is required to reduce the initial speed of the proton by a factor of 3? _________________ kV

(c) What potential difference is required to reduce the initial kinetic energy of the proton by a factor of 3? _______________________kV

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