Answer to Question #282034 in Physics for Tan

Question #282034

1. A speaker vibrates at 200 cycles per second.

Period:

Frequency:

2. A smoke alarm battery is beeping 2 times per minute.

Period:

Frequency:

Expert's answer

1)

Period : "T=1\/f=1\/200=0.005\\ s"

Frequency : "f=200 Hz"

2)

Period : "T=t\/N=60\/2=30\\ s"

Frequency : "f=1\/T=N\/t=2\/60=0.033 Hz"

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