Chapter 24- College Physics, 7^th ed. (Sears, Zemansky, Young)

24-1. 9.3 x 10⁵ C

24-2. 2.4 x 10⁵ C

24-3. 2.02 N; repulsive

24-4. a) +5.34 x 10^-7 C b) 0.600 N (attractive)

24-5. 1.07 x 10^-14 m; 1.07 x 10^-14 m

24-6. a) 1.12 x 10^-6 C; 1.12 x 10^-6 C b) 7.91 x 10^-7 C; 1.58 x 10^-6 C

24-7. 6980

24-8. 0.119 m

24-9. a) 1.10 x 10²⁶ b) 1.32 x 10¹⁶ c) 1.20 x 10^-8 %

24-10. 2.19 x 10⁶ m/s

24-11. 6.38 x 10^-7 N; +y direction

24-12. 1.91 x 10^-6 N; -x direction

24-13. 0.259 N; +x direction

24-14. a) 0

24-15. see back of book

24-16. a) 3.34 x 10^-7 C b) –x direction

24-17. a) 5.06 x 10⁷ N b) 1.43 x 10⁸ N; toward center of the earth

24-18. a) 0.55 x 10^-8 C; 5.45 x 10^-8 C

24-19. a) 3.24 x 10^-5 N; -1.30 x 10^-5 N b) 3.49 x 10^-5 N; 338°

24-20. a) 6.75 x 10^-5 N; -4.31 x 10^-5 N b) 8.01 x 10^-5 N; 327°

24-21. see back of book

24-22. a) 1.35 x 10^-6 N; away from vacant corner b) 1.29 x 10^-6 N; toward center of square

24-23. a) 5.29 x 10^-11 m b) 1.09 x 10⁶ m/s

24-24. b) q₁ < 0; q₂ > 0 c) 1.69 x 10^-6 C d) 56.2 N

24-25. b) 2.15 x 10^-6 C c) 31.7°

24-26. a) 0.0226 N b) 6.30 x 10^-13 C² c) 0.0329 N d) 2.17 x 10^-6 C; 0.29 x 10^-6 C