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17.1 Exercise 8

Avg difficulty 2.5

A sound wave is modeled with the wave function ΔP=1.20Pasin(kx−6.28×104s−1t)\Delta P = 1.20 \text{Pa} \text{sin} \left(k x - 6.28 \times 10^{4} \text{s}^{−1} t\right) and the sound wave travels in air at a speed of v=343.00m/s.v = 343.00 \text{m}/\text{s} . (a) What is the wave number of the sound wave? (b) What is the value for ΔP(3.00m,20.00s)\Delta P \left(3.00 \text{m} , 20.00 \text{s}\right)?

OpenStax University Physics Volume 1, 17.1 Sound Waves, exercise 8

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Adapted from University Physics Volume 1 © 2016 Rice University. Licensed under CC BY 4.0. Source: University Physics Volume 1. Imported at revision db44eb9.