Page 393, problem 8:
(a)T=μω^2 r^2
Page 393, problem 9:
(b)g/ 2
Page 394, problem 13:
Check: The actual length of a flute is about 66 cm.
Page 395, problem 17:
(a)f= 4α/(1 +α)^2 (b)v 2 =
√
v 1 v 3Page 395, problem 17:
(a)f= 4α/(1 +α)^2 (b)v 2 =
√
v 1 v 3Answers for chapter 10
Page 660, problem 22:
(a)E= 2kλ/R.
Answers for chapter 11
Page 745, problem 5:
(a)I=λv.
Page 746, problem 6:
(b) 2kI 1 I 2 L/c^2 R.
Answers for chapter 12
Page 842, problem 61:
f/
Page 843, problem 62:
P= (1/2)(n^2 −1)
Answers for chapter 13
Page 948, problem 40:
about 10−^34