Two Harmonic Waves Are Described By $y_{1}=(3 \mathrm{~m}) \sin \left(\frac{4}{\mathrm{~m}} x-\frac{700}{\mathrm{~s}} t\right)$

question 26

Multiple Choice

Two harmonic waves are described by: $y_{1}=(3 \mathrm{~m}) \sin \left(\frac{4}{\mathrm{~m}} x-\frac{700}{\mathrm{~s}} t\right)$ $y_{2}=(3 \mathrm{~m}) \sin \left(\frac{4}{\mathrm{~m}} x-\frac{700}{\mathrm{~s}} t-2\right)$ What is the amplitude of the resultant wave?

• A)8.0 m
• B)4.3 m
• C)6.0 m
• D)3.2 m
• E)3.0 m

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