Chapter 20
P10. 7.6 T west
P12. (b) 350 A, (c) 5.22 N
P36. 91.9 A
Chapter 21
P4. from right to left
P8. specify directions
P10. (a) 0.17 V
P24. 86 V
P36. (b) 3.3 A, (c) 0.33 A, (d) 3.6 ohms
Chapter 22
P20. 14 s sooner
P38. 5.56 m, 0.372 m
Chapter 23
P2. 5.9 x 10-6 m
P12. 2.09 cm behind the surface
P16. (a) -7 cm, (b) 1.0 mm
P28. 11.56
P42. 70.7 cm
P50. converging lens, +39.8 cm, real
P64. real 21.3 cm beyond second lens, -0.708
Chapter 24
P20. 2.4 m
P40. 169 nm
P58. 45 degrees
Chapter 25
P14. (b) 22 cm
Chapter 26
P24. 9 x 1013 J, 9.3 x 1010 kg
Chapter 27
P12. 1.77 eV < E < 3.10 eV
P26. 1.52 MeV
P36. 3.2 x 10-32 m
P42. 1840
Chapter 30
P4. 5.3 %
P28. 6.12 MeV, 0.27 MeV
P30. 5.41 MeV
P36. 4.91 x 10-18 s-1
P44. (a) 3.8 x 1016 nuclei, (b) 2.5 x 1015
Chapter 31
P8. (b) 19.85 MeV
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