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Please answer a,b,c
Physics 151 Spring 2018 Lecture-Tutorial for Lecture #35-Wed, Apr. 18 Longitudinal Standing Wave Modes; Doppler Effect $17 5: Standing Wave Modes in Air Columns; $17A: Doppler Effect & Shock Fronts Read: OpenStas 1. A trumpet can be modeled as an air-filled pipe with one closed (sealed) end and one open end, with a length L and a narrow diameter D. (Assume that L >> D By buzzing his lips slowly, the trumpet player excites the trumpets fundamental mode. By buzzing faster (and leaving all dimensions of the trumpet constant), he excites the first overtone. By buzzing faster still, he excites the second overtone a. At right,carefully sketch what the mode of oscillation looks like inside the pipe for all three of these modes. (Sketch air displacement. NOT air pressure) fundamenal Label ALL nodes with the letter N and antinodes with the letter A. including at the ends. firnt overtone secosd overtone b. Suppose that the length of the trumpets coiled pipe has a total length of 95.0 cm, and the speed of sound waves in the air inside the trumpet is 340, m/s. Find the wavelength and frequency for each of these modes. Fundamental wavelength: A. 71.3 cm D. 1 66 m B. 76.0 cm E 3.80 m C. 127 m frequency: A-800 Hz D.320. Hz B. 160. Hz E. 400. Hz C. 240. Hz overtone wavelength: A. 713 cm D. 1.66 m frequency A. 80.0 Hz D. 320. Hz B. 160. Hz E 400. Hz C. 240. Hz B. 76.0 cm E. 380 m C. 127 m zed overtone: wavelength A. 713 cm D. 166 m B. 760 cm E. 3.80m C. 1.27m frequency A, 800Hz B. 160. Hz C. 240. Haz D.320,Hz E. 400. Hz e. Which of the above frequencies lie within the range of human audibility? A only the fundamental B only fundamental &1 overtone C. all three modes
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note ㄐ q5x4-380 Crn: 3.8 m (E) ろ40 89.474 Hz (A) λ= 4-1 3.8 3 1.26t m (c) Ü, 247 : 268.35 Hz (C да -1-267 5 3 0.76 o ala are

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