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physics - q m e AB A e A = =-= × ×-× =-v 2 31 6 2 19 2...

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Solution The work-energy theorem (for an electron under the influence of just an electric force) gives W q V K AB AB = - = = - K A , where W AB is the work done by the electric field (also equal to - = U K AB B ), . and 0 Thus,
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Unformatted text preview: q m e AB A e A = =-= × ×-× = ---v 2 31 6 2 19 2 911 10 6 5 10 2 16 10 120 ( ) ( . )( . ) ( . ) kg m/s C V. (To stop an electron, a negative potential difference must be applied.)...
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