So far we've seen situations in which Wave 1 and Wave 2 have the same amplitude. But constructive and destructive interference is not limited to situations in which each wave has the same amplitude. Tap on the Destruct button again. Observe the Wave Sum. Then change the amplitude of Wave 1 to 0.16 m; keep the amplitude of Wave 2 at 0.32 m. This is also an example of destructive interference. Observe the Wave Sum. Describe how it is different than a situation in which two waves have the same amplitude If the two waves have the same the wave sum amplitude becomes

A string of length L=0.420m is fixed at both ends. The speed of transverse waves on the string is v=378. m/s. 2. a.) For standing waves on this string what are the frequencies of the 1" through 4th harmonics? b.) For standing waves on this string what are the wavelengths of the 1t through 4 harmonics? c.) Sketch the envelope of oscillation for the 4th harmonic only. Mark nodes with the letter "N".

Order the following waves by their wave vector. Negative wave vectors are less than positive wave vectors. a) y(x, t) = 4 sin(x - t) b) y(x, t) = 4 sin(-x- - t) - c) y(x, t) = 4 sin(2x - 5t) d) y(x, t) = sin(-2x - t) a) > c) > d) > b) d) >b) > c) > a) c) = d) > a) = b) c) > a) > b) > d) A

We know that a speaker that is 3m away from us is playing music at an intensity of 0.89W/m2. What is the power of this speaker?               Another speaker is playing at an intensity of 1.2W/m2 and a power of 2W. How far away is this speaker from us?                 What is the difference between constructive and destructive interference? Give an example of each.                   If you know that the interference of 2 waves creates a wavelength of a wave is 4.5m, can you determine if the interference is constructive or destructive? How do you know?             If one note has a frequency of 132Hz and another has a frequency of 148Hz. What is the beat frequency?     A vocal tract has a length of 15.3cm and is represented by the 3rd harmonic. 6a. How many nodes are there in the 3rd harmonic?         6b. What is the wavelength of the 3rd harmonic?               6c. What is the frequency of the 3rd harmonic?                 6d. What is the wavelength of the 4th harmonic?…