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If an electron is accelerated from rest through a potential difference of 7 kV, what is...

If an electron is accelerated from rest through a potential difference of 7 kV, what is its resulting speed? (e = 1.60 × 10-19 C, k = 1/4πε0 = 8.99 × 109 N ∙ m2/C2, mel = 9.11 x 10-31 kg). (Give your answer to the nearest km/s).

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