1E-3. A sawtooth wave in air has a pressure amplitude of 1 dyne/cm². Find the sound pressure level. PA 1 dyne/cm² WWW 1B-3. An infinite string has zero velocity and the deformation shown in the figure, i.e., released. cosx, -л/2 0. (b) Sketch the waveform on the string ((x) for a few representative values of ct, including one for 0 < сt < л/2. (c) Sketch the characteristics diagram (x, t diagram) for the problem. Give detail, including important points, lines, and regions, and the values of for them if appropriate.

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1E-3. A sawtooth wave in air has a pressure amplitude of 1 dyne/cm². Find
the sound pressure level.
PA
1 dyne/cm²
WWW
Transcribed Image Text:1E-3. A sawtooth wave in air has a pressure amplitude of 1 dyne/cm². Find the sound pressure level. PA 1 dyne/cm² WWW
1B-3. An infinite string has zero velocity and the deformation shown in the
figure, i.e.,
released.
cosx, -л/2<x<л/2. At time t = 0 the constraint is
ΕΑ
-π/2
π/2
(a) Find the mathematical solution for t> 0.
(b) Sketch the waveform on the string ((x) for a few representative
values of ct, including one for 0 < сt < л/2.
(c) Sketch the characteristics diagram (x, t diagram) for the problem.
Give detail, including important points, lines, and regions, and the
values of for them if appropriate.
Transcribed Image Text:1B-3. An infinite string has zero velocity and the deformation shown in the figure, i.e., released. cosx, -л/2<x<л/2. At time t = 0 the constraint is ΕΑ -π/2 π/2 (a) Find the mathematical solution for t> 0. (b) Sketch the waveform on the string ((x) for a few representative values of ct, including one for 0 < сt < л/2. (c) Sketch the characteristics diagram (x, t diagram) for the problem. Give detail, including important points, lines, and regions, and the values of for them if appropriate.
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