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How many seconds is the period of a 440-hertz sound
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How many seconds is the period of a 440-hertz sound

User Sergio B
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The period is the reciprocal of the frequency.

T = 1 / f .

'Hz' = 'Hertz' means 'per second' or ' /sec '.

440 Hz = 440/sec .

The period (reciprocal) = sec/440 = 0.0022727... repeating

= 2-3/11 milliseconds
User Erwin Smith
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