P26_048 - set o an explosion.

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48. (a) Eq. 26-22 yields U = 1 2 CV 2 = 1 2 ( 200 × 10 12 F )( 7 . 0 × 10 3 V ) 2 =4 . 9 × 10 3 J . (b) Our result from part (a) is much less than the required 150 mJ, so such a spark should not have
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