Two Harmonic Waves Are Described By $y_{1}=(7 m) \sin \left(\frac{5}{m} x-\frac{100}{s} t\right)$

question 17

Multiple Choice

Two harmonic waves are described by: $y_{1}=(7 m) \sin \left(\frac{5}{m} x-\frac{100}{s} t\right)$ $y_{2}=(7 \mathrm{~m}) \sin \left(\frac{5}{\mathrm{~m}} x-\frac{100}{\mathrm{~s}} t+2\right)$ What is the phase (in rad) of the resultant wave when x = t = 0?

• A)3
• B)0
• C)2
• D)1
• E)4

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