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Prelab Exercises for Standing Waves Prelab exercises should be attempted after reading the relevant chapter in the lab manual and before coming to the lab.

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Prelab Exercises for Standing Waves Prelab exercises should be attempted after reading the relevant chapter in the lab manual and before coming to the lab. Prelab exercises must be submitted prior to the start of each lab using eClass. 1. (a) Explain the differences between travelling and standing waves. (b) What is the difference between transverse and longitudinal waves? 2. With the help of Section 6.3 and figures 6.4 and 6.5 in the lab manual, draw wave envelopes for the first three standing waves (n = 1, 3, and 5) for standing waves with a wavelength of 12 cm. Include the length, L, of each standing wave in your diagram. 3. A glass tube, open at one end, is filled with an unknown liquid. Using a sound wave with a frequency of (1200 + 1) Hz, you set up the first standing wave and measure a length, L = (0.18 + 0.01) m. Calculate the speed of sound, including uncertainty, in the unknown material. Which liquid is the tube filled with given the speed of sound in (a) water is 1481 m/s, (b) acetic acid is 1173 m/s or (c) liquid Argon is 840 m/s

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