Question #1bd60

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Answer 1 · 2015-04-03T16:51:03

(a) $f=3s^(-1)$

(b) $T=1/3s$

(c) $v=6"m/s"$

Speed = frequency x wavelength

$v=flambda$

If it vibrates 3 times per sec then $f=3s^(-1)$

The period $T$ is the time taken for 1 complete vibration and is equal to $1/f$ .

So $T=1/3= 0.33s$

and:

$v=3xx2 = 6"m/s"$