Problem 2: Sound generators We have identical sound generators at the same place generating sound waves....
Problem 2: Sound generators We have identical sound generators at the same place generating sound waves. Half of the generators are in phase and the other half has random phases. The total intensity is 20 times bigger than the intensity of a single generator. How many sound generators do we have in total? iii) 12 (iv) 16 (v) 20
Problem 2: Speakers One speaker generates sound waves with the amplitude A. How does the intensity change if we add two more speaker at the same place generating sound waves of the same frequency: one with amplitude 4A in the same phase and the other with the amplitude 2A in the opposite phase. (i) It stays the same. (ii) It is 3x bigger than before (ii) It is 7x bigger than before. (iv) It is 9x bigger than before (v)...
1. Two loudspeakers 6.0 m apart are playing the same frequency. If you stand 10.0 m in front of the plane of the speakers, centered between them, you hear a sound ofmaximum intensity. As you walk parallel to the plane of the speakers, staying 10.0 in front of them, you first hear a minimum of sound intensity when you are directlyin front of one of the speakers. What is the frequency of the sound? Assume a sound speed of 340...
Review Conceptual Example 8 as background for this problem. A loudspeaker is generating sound in a room. At a certain point, the sound waves coming directly from the speaker (without reflecting from the walls) create an intensity level of 81.7 dB. The waves reflected from the walls create, by themselves, an intensity level of 67.4 dB at the same point. What is the total intensity level? (Hint: The answer is not 149.1 dB.)
6-1 Two speakers emit sound waves with frequency 4.27 kHz s pts by the same oscillator so that they are in phase with each other. I place the They are driven speakers side-by-side, and I stand across the room from them. If someone moves one of the speakers towards me, I hear the total intensity drop and then rise again. How far had they moved the speaker at the point whereI heard a minimum intensity due to destructive interference of...
Chapter 17, Problem 016 Two sound waves, from two different sources with the same frequency, 562 Hz, travel in the same direction at 337 m/s. The sources are in phase. What is the magnitude of the phase difference of the waves at a point that is 4.10 m from one source and 6.73 m from the other? Number Units
You are standing a distance d (2m) directly in front of one of two identical speakers, being driven by the same signal generator, that are a distance h (5m) apart. You walk in the positive direction starting at y=0 m, along a line parallel to the line joining the two speakers. The speed of sound is 340 m/s and the frequency is 170 HZ. As you walk, how many times and where will you hear a maximum sound? PROBLEM You...
7. Consider two waves traveling in the same direction but with two slightly different angular frequencies ω- Δω and ω+ 2Δο. Let the fields have the same amplitude and polarization. a. Show the sum of the two waves is equivalent to a wave moving with a phase velocity vp-ωΚ but with an amplitude envelope which moves with a group velocity b. In the limit that Δω 0 the group velocity vg-do/dK. For waves traveling in a plasma we derived the...
Help with question number 2 please PRACTICE EXERCISES A nular wave pulses are traveling in opposite directions along a string. At -0, the two pulses are as shown in the meters, and that the pulse speeds are 10m/s) 1) Tw Sketch the wave functions for t 1, 2, and 3 figure. (As s sume the unit on the x-axis is (Hint: Just use the principle of superposition.) s qu 10 10 t- 0 15 45 50 2) Sound source A...
Which of the following is NOT true for electromagnetic waves? (a) they transport energy (b) they transport momentum (c) they consist of changing electric and magnetic fields (d) they travel at different speeds in vacuum, depending on their frequency e) they can be reflected We perceive frequency for sound wave as pitch. What do we perceive frequency for light waves? (a) Color (b) Brightness (c) opacity (d) Shininess Unpolarized light passes through a single polarizer with an intensity of 10.00...