Wave Speed on a String - Tension Force, Intensity, Power, Amplitude, Frequency - Inverse Square Law

This physics video tutorial explains how to calculate the wave speed / velocity on a stretch string given an applied tension and linear density of the wire. It also discusses the wave intensity as a function of source power and distance in addition to its relationship to the inverse square law. It covers topics such as period, frequency, and amplitude of a wave. This video contains plenty of examples and practice problems.
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Here is a list of topics:
1. Transverse and Longitudinal Waves
2. Intensity, Amplitude, and Frequency
3. Sound Waves - Compression vs Expansion / Rarefaction
4. High and Low Pressure Regions of Sound Waves
5. Water Waves and Waves on a String
6. Wave Speed on a Stretched Spring
7. Tension Force and Linear Density - Mass Per Unit Length
8. Energy in Wave Motion
9. Wave Intensity, Power, and Distance
10. Inverse Square Law - Intensity and Distance
11. Crest vs Trough of Sinusoidal Wave
12. Period, Frequency, Wavelength, Amplitude and Wave Velocity Calculations
13. Velocity and Tension Force of Spring
14. Principle of Superposition
15. Constructive vs Destructive Interference