The pressure in a traveling sound wave is givenby the equation P = (1.80 Pa) sin

Question

The pressure in a traveling sound wave is givenby the equation
P = (1.80 Pa) sin [ (0.856m-1)x - (264s-1)t]
Find (a) the pressureamplitude, (b) thefrequency, (c) the wavelength,and (d) the speed of the wave. I got: (a) 1.8 Pa (b) f = / (2 ) where 264 s-1 so f =42.0169 (c) = 2 / k where k= 0.856 m-1 so = 7.34 (d) v = f * so v = (42.0169) (7.34) = 308.4 WileyPlus is telling me(a) and (d) are correct, but (b) and (c) are wrong. I'm not surehow (d) could be correct if (b) and (c) are wrong. Could someoneplease do (b) and (c). The pressure in a traveling sound wave is givenby the equation
P = (1.80 Pa) sin [ (0.856m-1)x - (264s-1)t]
Find (a) the pressureamplitude, (b) thefrequency, (c) the wavelength,and (d) the speed of the wave. I got: (a) 1.8 Pa (b) f = / (2 ) where 264 s-1 so f =42.0169 (c) = 2 / k where k= 0.856 m-1 so = 7.34 (d) v = f * so v = (42.0169) (7.34) = 308.4 WileyPlus is telling me(a) and (d) are correct, but (b) and (c) are wrong. I'm not surehow (d) could be correct if (b) and (c) are wrong. Could someoneplease do (b) and (c). WileyPlus is telling me(a) and (d) are correct, but (b) and (c) are wrong. I'm not surehow (d) could be correct if (b) and (c) are wrong. Could someoneplease do (b) and (c).

Explanation / Answer

The pressure in a traveling sound wave is givenby the equation
P = (1.80 Pa) sin [ (0.856m-1)x - (264s-1)t]
(b) the frequency  f =/ ( 2 ) where = * 264 s-1
                          so f =132 Hz
(c) the wavelength = 2 / k wherek = * 0.856 m-1
                            so =2.336 m

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