A Wave Is Described by Y = 10 Sin (4 $\pi$

question 56

Multiple Choice

A wave is described by y = 10 sin (4.0 $\pi$ t - 6.0 $\pi$ x) . If the equation is in SI units with the units suppressed, what is its speed?

• A) 2/3 m/s
• B) 3/2 m/s
• C) 1/6 m/s
• D) 1/4 m/s

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