A 2.00 kg mass is connected to a spring with a spring constant of 900 N/m. The displacement is given by the expression *x*(*t*) = (12.0 cm) sin(*ω**t*). What is the frequency of the simple harmonic motion?

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5.02 Hz

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4.21 Hz

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3.38 Hz

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2.56 Hz

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2.05 Hz