Mathematic Methods HW Solutions 29

Mathematic Methods - Chapter 7 amplitude period frequency velocity amplitude 2.1 3 2/5 5(2 15 2.2 2/2 2 8 2.3 1/2 2 1/2/2 2.4 5 2 1(2 5 1/3 3 2.5

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Chapter 7 amplitude period frequency velocity amplitude 2.1 3 2 π/ 5 5 / (2 π ) 15 2.2 2 π/ 2 2 8 2.3 1 / 2 2 1 / 2 π/ 2 2.4 5 2 π 1 / (2 π ) 5 2.5 s = sin6 t 1 π/ 3 3 6 2.6 s = 6 cos π 8 sin 2 t 6 cos π 8 = 5 . 54 π 1 12 cos π 8 = 11 . 1 2.7 5 2 π 1 / (2 π ) 5 2.8 2 4 π 1 / (4 π ) 1 2.9 2 2 1 / 2 2 π 2.10 4 π 1 8 2.11 q 3 1 / 60 60 I 360 π 1 / 60 60 2.12 q 4 1 / 15 15 I 120 π 1 / 15 15 2.13 A = maximum value of θ , ω = r g/l. 2.14 t = 12 2.15 t = 3 π 2.16 t = 4 . 91 = 281 2.18 A = 2, T = 1, f = 1, v = 3, λ = 3 2.19 A = 1, T = 4, f = 1 / 4, v = 1 / 4, λ = 1 2.20 A = 3, T = 4, f = 1 / 4, v = 1 / 2, λ = 2 2.21 y = 20 sin π 2 ( x - 6 t ), ∂y ∂t = - 60 π cos π 2 ( x - 6 t ) 2.22 y = 4 sin2 π ( x 3 - t 6 ) 2.23 y = sin 880 π ( x 350 - t
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This note was uploaded on 02/29/2012 for the course MHF 2312 taught by Professor Dr.chet during the Fall '11 term at UNF.

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