Lesson_5.5_Homework

Lesson_5.5_Homework - Lesson 5.5 Homework 1 Two sound waves...

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Lesson 5.5 Homework: 1. Two sound waves traveling in the same direction both have a frequency of 256 Hz and differ in phase by π /6. If they both have an amplitude of 0.02 mm, what is the resultant amplitude? 2. Two waves traveling in the same direction have the same frequency, wavelength and amplitude and they each has an amplitude 0.05 mm. If they differ in phase by (i) π /2, (ii) π , what is the amplitude of the resultant wave? 3. Two sound sources oscillate in phase with a frequency of 68 Hz. (i) What is the wavelength of the waves? (ii) A listener is 10 m from one source and 11.2 m from the other. What is the path difference between the waves reaching the listener from these sources? (iii) What is the phase difference between the two waves reaching the listener? (iv) If the amplitude of each wave separately is 0.01 mm, what is the resultant amplitude at the listener? 4. One source of sound is at the point (0, 0) and another source is at (0, 2.4). The two sources are coherent and in phase. What is the lowest
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This note was uploaded on 05/01/2011 for the course PHY 2048 taught by Professor George during the Fall '10 term at Edison State College.

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Lesson_5.5_Homework - Lesson 5.5 Homework 1 Two sound waves...

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