Two waves

Two waves are out of phase by 26°. If the period of the waves is 6 seconds, what is the time difference between the waves? Give your answer in seconds to 2 decimal places.

Correct answer:

t =  0.43 s

Step-by-step explanation:

$$\begin{gathered} \alpha =26{}^{\circ } \\ T=6\text{s} \\ t=\frac{\alpha }{360}\cdot T=\frac{26}{360}\cdot 6=\frac{26\cdot 6}{360}=\frac{156}{360}=\frac{13}{30}\text{s}=0.43\text{s} \end{gathered}$$

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