Waves, Sound and Light: Sound and Music Sound and Music: Audio
Guided Solution Olivia and Mason are doing a lab which involves
stretching an elastic cord between two poles which are 98 cm
apart. They use a mechanical oscillator to force the cord to
vibrate with the third harmonic wave pattern when the frequency
is 84 Hz. Determine the speed of vibrations within the elastic
cord. 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 and record in an organized
manner, often times they can be recorded on the diagram itself.
Equate given values to the symbols used to represent the
corresponding quantity (e.g., v = 345 m/s, λ = 1.28 m, f = ???).
- Use physics formulas and conceptual reasoning to plot a
strategy for solving for the unknown quantity. - Identify the
appropriate formula(s) to use.