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

question 44

Multiple Choice

Two harmonic waves are described by $$y _ { 1 } = ( 7 \mathrm {~m} ) \sin \left( \frac { 5 } { m } x - \frac { 100 } { s } t \right)$$ $$y _ { 2 } = ( 7 m ) \sin \left( \frac { 5 } { m } x - \frac { 100 } { s } t + 2 \right)$$ 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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