Unformatted text preview: wave functions, and to define the dash pot y-coordinate by a variable (such as y (t)=Y*e-i w t ). a) Write down the two boundary conditions that you need to apply at the end of the string in order to determine the two unknowns (the amplitude of the reflected wave B and the amplitude of the dash pot motion Y ). b) Determine the amplitude of the reflected wave in terms of the incident wave amplitude A , the string wave impedance, and the dashpot impedance r . Under what condition, if any, will the reflected power be zero? c) Show that the difference between the incident wave energy and the reflected wave energy is equal to the power absorbed by the dash pot....
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- Spring '08
- Fundamental physics concepts, dash pot