19. (8 points) The displacement of a traveling wave is given byD(x, t) = (3.2 mm) cos (12.6 x + 157 t)where x is measured in meters, and t in seconds. Find (a) the amplitude, (b) the wavelength, (c) theperiod, (d) the wave speed, and (e) the direction of travel.

D(x, t) = 3.2 mm Cos (12.6 x + 157 t)

Answered: 19. (8 points) The displacement of a…

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter13: Mechanical Waves

Section: Chapter Questions

Problem 8P

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19. (8 points) The displacement of a traveling wave is given by D(x, t) = (3.2 mm) cos (12.6 x + 157 t) where x is measured in meters, and t in seconds. Find (a) the amplitude, (b) the wavelength, (c) the period, (d) the wave speed, and (e) the direction of travel.