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Answers to Chapter 9 Problems

 

9.3.1  (a)  1.09 × 109 m    (b)  0.82c 

9.4.1  (a) x' = 6.93 m, t' = –1.15 × 10–8 s     (b) x' = â€“3.46 × 108 m, t' = +2.31 s    (c) x' =  â€“2.77 × 108 m, t' = 2.19 s

9.5.1  0.759 m

9.5.2   0.9995c moving either northwards or southwards

9.6.1  0.987c = 2.96 x 108 m s–1

9.6.2  (a) 2.996 × 108 m s–1    (b)  3.004 x 1012 s = 95,250 years

9.6.3   9.51 × 10–8 s;  28.3 m

9.6.4   0.374cT

9.8.1   (a) â€“16,666 m s–1   (b)    (1/{1+ 7.72 x 10–10}) x 16,666 m s–1  (c)  fractional  error is 7.72 x 10–10

9.8.2  four times

9.8.3  (a)  0.263c   (b)  0.806c

9.8.4  1.15 × 10–7 s

9.8.5   0.582c at 47.6° S of W’

9.10.1  3.87mc;   3.81mc2

9.11.1  

9.12.1  7.03 x 10–23 kg m s–1;  2.66 x 10–15 J;   3.1%;   4.5%

9.12.2 

9.12.3  0.27c

9.12.4  (a) 3.46 x 107 m s–1   (b) 1.09 x 107 m s–1

9.12.5  0.360c

9.12.6  6.9 × 10−14&²Ô²ú²õ±è;

9.12.7  1.55 MeV

9.12.8   0.451c;  2.24m

9.12.9

9.12.10  0.261 MeV;  the relativistic energy is 81% greater

9.13.1  0.374c;   0.218 MeV

9.13.2  (a) 143 MeV/c    (b) 0.715c;    3.72 x 10-8 s;    7.98 m

9.13.3   When E = 1100 MeV        (a)  160 MeV     (b)  571 MeV/c        (c)  0.52c

             When E = 1700 MeV        (a)  760 MeV     (b) 1416 MeV/c       (c)  0.83c

9.13.4  56.5 m

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