Posted by **Danny** on Saturday, November 7, 2009 at 10:40pm.

A 2.2 m-long string is fixed at both ends and tightened until the wave speed is 50 m/s. What is the frequency of the standing wave shown in the figure?

Answer in Hz.

I've been working on it for a while but cant figure out...

- Physic -
**drwls**, Sunday, November 8, 2009 at 8:14am
Without the figure, or a description of it, we can't help you. Use the figure to determine the wavelength. It will be twice the distance between two nodes (zeroes) of the standing wave pattern. Then use

(frequency) * (wavelength) = (wave speed) to get the frequency.

- Physic -
**AP**, Sunday, November 8, 2009 at 2:46pm
there are 6 nodes in the diagram

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