b. wave C c. wave D r frequencies? 24. Compa a. waves B and C b. waves Band D c.

Question

b. wave C c. wave D r frequencies? 24. Compa a. waves B and C b. waves Band D c. waves C and D 25. The pitch of a musical sound depends on the sound wave's a. wavelength. b. frequency. c. speed d. amplitude e. all of these. 26. A Doppler effect occurs when a source of sound moves a. toward you. b. away from you. c. both of these d. none of these. 27. Derived units are best defined as: A. measurements made using electronic equipment. B. units containing an exponent such as m2, C. measurements based on a non-metric system. D. combinations of two or more basic measurements.

Explanation / Answer

24. Waves B & C

25. frequency

26. both of these

27. Combination of two or more basic measurements

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