Waves, Sound and Light: Sound and Music
Sound and Music: Audio Guided Solution
Problem 22:
An 80-cm length closed-end air column is forced to vibrate in its fifth harmonic. Determine the locations of the nodal positions (positions where air is undisturbed). Express the locations in cm using the diagram below. Note that the closed end is at 0 cm.
Audio Guided Solution
Habits of an Effective Problem Solver
- Read the problem carefully and develop a mental picture of the physical situation. If necessary, sketch a simple diagram of the physical situation to help you visualize it.
- Identify the known and unknown quantities in an organized manner. Equate given values to the symbols used to represent the corresponding quantity - e.g., vo = 0 m/s; a = 4.2 m/s/s; vf = 22.9 m/s; d = ???.
- Use physics formulas and conceptual reasoning to plot a strategy for solving for the unknown quantity.
- Identify the appropriate formula(s) to use.
- Perform substitutions and algebraic manipulations in order to solve for the unknown quantity.
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