Hello, everyone. I need help with aquestion. If someone could help, I would defi

Question

Hello, everyone.   I need help with aquestion.   If someone could help, I would definitelyappreciate it.   Thank you in advance!!  :-)
A wave causes a displacement y that is given in metersaccording to y = (0.45)sin(8.0 +x), where and x are expressed in seconds and meters,respectively.   (a). Find the amplitude, the frequency,the wavelength and the speed of the wave.   (b). Is thiswave traveling in the +x or -x direction? Hello, everyone.   I need help with aquestion.   If someone could help, I would definitelyappreciate it.   Thank you in advance!!  :-)
A wave causes a displacement y that is given in metersaccording to y = (0.45)sin(8.0 +x), where and x are expressed in seconds and meters,respectively.   (a). Find the amplitude, the frequency,the wavelength and the speed of the wave.   (b). Is thiswave traveling in the +x or -x direction?

Explanation / Answer

we know that a sine wave is represented in the formy=asin(wt+kx)               so compairing it with the given we get 1) amplitude = a=0.45 w=8 now 2f=8 so f=4 /s frequency is 4/s and k= so 2/= so = 2 wavelenght = 2 and wave velocity = w/k                            = 8 m/s 2)as here we have taken wt + kx it is traveling in positve direction

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