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An electron is accelerated from rest through a potential difference that has a magnitude of 3 x 10⁷ Volt. The mass of the electron is 9.11 x 10^-31 kilogram, and the negative charge of the electron has a magnitude of 1.60 x 10^-19 C.

(a) Estimate the relativistic kinetic energy (in joules) of the electron?

(b) Estimate the speed of the electron?

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