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

question 47

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 frequency?

• A) 6.0 Hz
• B) 2/3 Hz
• C) 3.0 Hz
• D) 2.0 Hz

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