A sine wave is characterised by an equation y-10 sin 10t - 2x - -2- The wave velocity is

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Wave Speed expression

A sine wave i...

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A sine wave is characterised by an equation $y = 10 sin (10 t - 2 x + π / 2)$ . The wave velocity is

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20 cos (10 t - 2 x + π / 2)

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Solution

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y = 2 c o s x

x = \frac{π}{4}

π

s^{- 1}

y -

y = 10 sin ((30 t - 2 x) + \frac{π}{4})

x

y

t

sec

Y = Y_{0} s i n 2 π (f t - x / λ)

Y_{0} = 1 / π

λ

y = 3 c o s (\begin{matrix} \frac{x}{4} - 10 t - \frac{π}{2} \end{matrix})

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