problem21_91

University Physics with Modern Physics with Mastering Physics (11th Edition)

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21.91: (a) As in 22.72: + - = - 2 1 2 2 0 1 1 2 x R ε σ E E ε π + - = - 2 1 2 2 0 2 1 ) m 200 . 0 ( m) 025 . 0 ( 1 2 m) (0.025 pC 00 . 4 + = in the C N 89 . 0 x -direction. b) )] 8 3 2 1 ( 1 [ 2 , 4 4 2 2 0 - + - - = x R x R ε σ E R x . 4 4 2 2 2 0 2 0 2 2 2 0 x πε Q x πε σπR x R ε σ = = c) The electric field of (a) is less than that of the point charge (0.90 ) C N since the
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