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Physics, 15.01.2021 22:20 lannor6586

A smoke alarm beeps twice per minute. What is the period and frequency 1 po of this cycle?
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O T = 25s, f = 0.30
O T = 40s, f = 0.60
O T = 30s, f = 0.03
O T = 20s, f = 0.06

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A smoke alarm beeps twice per minute. What is the period and frequency 1 po of this cycle?
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