Please show me how to solve this problem. I will give proper respect as soon as

Question

Please show me how to solve this problem.
I will give proper respect as soon as possible. PLEEEASE helpme!!!
I hope you can help me with all questions, but if you can help withonly a few I would be so happy.

Ch11 #3
A wave is specified by y = 6 sin 2(8t -4x +3/4).Find (a) the amplitude, (b) wavelength, (c) frequency, (d) initialphase angle, and (e) the initial displacement at time t = 0 and x =0.

Ans. (a) A= 6 (b) =0.25 (c)=16 , frequency= 8 (d) 3/2 (e) y=-6

Explanation / Answer

y = 6 sin(2(8t - 4x +3/4)) As we know the formular of a ware : y = A*sin(2(ft - x/ + )) => a) the amplitude : A =6 b) the warelength : = 1/4 =0.25 c)frequency : f = 8 d) initial phase angle : 2*3/4 = 3/2 e) at t =0 ,x =0 => y = 6*sin(3/2) = -6

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