Page 291 - Schaum's Outline of Theory and Problems of Applied Physics
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276                                   ELECTRICITY                                [CHAP. 23



                    9
         23.7. 9 × 10 N; repulsive
         23.8. 10 −2  N directed toward the other charge

         23.9. 1.5 × 10 −10  m
        23.10. (a)  0.1 m  (b)  10 cm

        23.11. 0.9 N directed to the right

        23.12. (a)  14.6 cm from the charge of +1 × 10 −7  C  (b)  The same location
        23.13. 5 × 10 −5  N

                                            15
        23.14. (a)  1.6 × 10 −15  N  (b)  1.8 × 10 m/s 2
        23.15. (a)  0  (b)  0   (c)  E = 0

        23.16. (a)  2000 V  (b)  2 × 10 −5  N  (c)  10 −6  J
                        4
        23.17. (a)  5 × 10 V/m  (b)  2000 V
        23.18. 2.4 × 10 −15  J

        23.19. (a)  5 × 10 −10  N  (b)  5 × 10 −12  J

                     6
        23.20. 1.2 × 10 J
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