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6. Choose the possible wavelengths of standing waves in an open-ended tube that is 3 m long. State which harmonic corresponds to each possible wavelength. a. 1 m b. 1.5 m c. 2 m d. 3 m e. 5m f. 6m questions continued on next page Unit BL Practice Problems Copyright @ 2018 Georgia Public Broadcasting. All rights reserved. Use or distribution by an unintended recipient is prohibited. PHYSICS Unit 6E Name: INMOTION>> Standing Waves and Resonance gpb.org/physics-motion Practice Problems Date: Work each of the following problems. SHOW ALL WORK. 7. Draw the first three harmonics of standing waves in a closed-ended tube (n = 1, 3, 5). 8. If the length of the tube in question seven is 2 m, what are the wavelengths of the first three harmonics