Okay, I have this study guide for a test, but I'm having troubles figuring out the answers...so these are some things I'm wondering:(adsbygoogle = window.adsbygoogle || []).push({});

1. If you have a taut string, by what factor would you have to increase the tension to double the wave speed?

I think it's 4, but I'm not sure.

2. If a string is under constant tension and generates a harmonic wave, by what factor would the amplitude and speed change if the power is doubled?

I have no clue on this one.

3. And how would you go about solving this problem: A sinusoidal wave is traveling along a rope. The oscillator that generates the wave completes 40 vibrations in 30s. A given peak travels 5m along the rope in 2s. What is the wavelength?

I know wavelength equals speed divided by frequency...but I don't know what to use as speed or frequency, so therein lies my problem.

Any help and/or explanations would be greatly appreciated.

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# Homework Help: Some specific questions about waves

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