일반물리학 1 — Waves-II: Problem 62

62 The pressure in a traveling sound wave is given by the equation \(\Delta p = (2.00 \text{ Pa}) \sin \pi[(0.900 \text{ m}^{-1}) x - (450 \text{ s}^{-1})t]\). Find the (a) pressure amplitude, (b) frequency, (c) wavelength, and (d) speed of the wave.