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Unformatted text preview: the change in √ . (See equations below) 3. wave-speed = wavelength * frequency v = (l-n) (f-n) f-n = v/(l-n) On a string pinned at both ends, a standing wave must have an integral number of half-wavelengths span the length of the string (L): So (n/2) (l-n) = L, so l-n = 2L/n Therefore f-n = v/(l-n) = v/(2L/n) = nv/(2L) = n (v/2L) So: f-n = n (v/2L) l-n = 2L/n 4. The relation is : 5. In physics, resonance is the tendency of a system to oscillate with larger amplitude at some frequencies than at others. These are known as the system's resonant frequencies. At these frequencies, even small periodic driving forces can produce large amplitude oscillations, because the system stores vibrational energy. Resonances occur when a system is able to store and easily transfer energy between two or more different storage modes...
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This note was uploaded on 07/13/2011 for the course CHEM 301 taught by Professor Wandelt during the Spring '08 term at University of Texas.
- Spring '08