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The period of a 261 Hertz sound wave is

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WOW! thats not hard at all 1 cycle occurs every 1/261 seconds

answered
User Downstroy
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The period is the reciprocal of the frequency. (1 divided by it)

Frequency = 261 / 1 second

Period = 1/261 second

= 0.00383... second (rounded)
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User Ubermensch
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