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Calculate the electric field intensity E...

Calculate the electric field intensity E which would be just sufficient to balance the wight of an electron. If this electric field is produced by a second electron located below the first one what would be the distance between them? [Given: `e=1.6xx10^(-19)C, m=9.1xx10^(-31)kg` and `g=9.8 m//s^(2)`]

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