Giancoli Ch. 17 – p. 489, Problems #14-24 key

14) 2.40 x 105 V

15) 2.1 x 10-9 C

16) 2.5 J

18a) 5.8 x 105 V

18b) 9.2 x 10-14 J

20) 3.49 x 107 m/s

21) 4.8 x 103 m/s

22a) 0.22 m left of q2

22b) 0.020 m from the negative charge towards the positive charge and 0.100 m from the negative charge away from the positive charge

23) 6.9 x 10-18 J

24a) 8.6 x 103 V

24b) 7.9 x 104 V/m at 56°