I am studying for an upcoming test, and it is known that there are hiccups in our study guide. I am stuck on two problems.(adsbygoogle = window.adsbygoogle || []).push({});

1. The problem statement, all variables and given/known data

1. What is the frequency, in Hz, of a sound wave (v=340 m/s) with a wavelength of 10 m?

2. A series of ocean waves, each 8 m from crest to crest and moving past an observer at a rate of 2 waves per second, has what speed?

2. Relevant equations

1. Frequency= 1 / Period

2. V = Lambda / Period

3. The attempt at a solution

1. I get the answer .029, but the study guide says 0.0029 Hz?

2. I get the answer 4, but study guide says 16?

Any help is appreciated!

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# Frequency, and finding wave speed. Professor mistake?

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