Two harmonic waves are described by: $y_{1}=(3 \mathrm{~cm}) \sin \left(\frac{8.0}{\mathrm{~m}} x+\frac{2.0}{\mathrm{~s}} t\right)$ $y_{2}=(3 \mathrm{~cm}) \sin \left(\frac{8.0}{\mathrm{~m}} x-\frac{2.0}{\mathrm{~s}} t\right)$ What is the magnitude of the speed (in m/s) of the two travelling waves?
A)16
B)4.0
C)8.0
D)0.25
E)2.0

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The Answer of Two harmonic waves are described by: $y_{1}=(3 \mathrm{~cm}) \sin \left(\frac{8.0}{\mathrm{~m}} x+\frac{2.0}{\mathrm{~s}} t\right)$ $y_{2}=(3 \mathrm{~cm}) \sin \left(\frac{8.0}{\mathrm{~m}} x-\frac{2.0}{\mathrm{~s}} t\right)$ What is the magnitude of the speed (in m/s) of the two travelling waves?
A)16
B)4.0
C)8.0
D)0.25
E)2.0

Two Harmonic Waves Are Described By y1=(3 cm)sin⁡(8.0 mx+2.0 st)y_{1}=(3 \mathrm{~cm}) \sin \left(\frac{8.0}{\mathrm{~m}} x+\frac{2.0}{\mathrm{~s}} t\right)y1​=(3 cm)sin( m8.0​x+ s2.0​t)

Two Harmonic Waves Are Described By $y_{1}=(3 \mathrm{~cm}) \sin \left(\frac{8.0}{\mathrm{~m}} x+\frac{2.0}{\mathrm{~s}} t\right)$