Assignment_6___Brief_Answers - x (m) . 008 . 016 . 024 ....

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Physics 2214 Assignment 6 Brief Answers 1. (a) Z 2 /Z 1 very small or very large. (b) Z 2 /Z 1 < 1. (c) Z 2 /Z 1 > 1. (d) Z 2 /Z 1 very large. (e) v 2 /v 1 < 1. 2. (a) μ 2 1 very small. (b) F 2 /F 1 = μ 2 1 . For T = 2, 0. (c) K 2 /K 1 = μ 2 1 . For T = 2, 0. 3. (b) Z 1 (1 - R ) = Z 2 T (c) T = 2 Z 1 / ( Z 1 + Z 2 ), R = ( Z 1 - Z 2 ) / ( Z 1 + Z 2 ). 4. (a) v air = 344 m / s, Z air = 413 kg / m 2 / s. v water = 1483 m / s, Z water = 1 . 48 × 10 6 kg / m 2 / s. (b) T = 5 . 58 × 10 - 4 . (c) R = - 0 . 2, T = 0 . 8. (d) R = 0 . 14, T = 1 . 14. 5. (a) μ 2 = 9 . 99 g / m, L 2 = 7 . 91 cm. (b) There will be a reflected wave. 6. (a) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
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Unformatted text preview: x (m) . 008 . 016 . 024 . 032 . 040 u k (J/m) 1 (b) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 x (m) . 008 . 016 . 024 . 032 . 040 u p (J/m) (c) Energy at both times is 0 . 128 J. 7. (a) A = 36 . 9 cm. (b) A = 7 . 38 m. 2...
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This note was uploaded on 04/01/2009 for the course PHYS 2214 taught by Professor Giambattista,a during the Spring '07 term at Cornell University (Engineering School).

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Assignment_6___Brief_Answers - x (m) . 008 . 016 . 024 ....

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