The trunk of a elephant may extend up to 2.3 m. It acts much like an organ pipe only open at one end when the elephant blows air through it. 1)Calculate the fundamental frequency of the sound the elephant can create with its trunk. (Express your answer to two significant figures.) 2)If the elephant blows even harder, the next harmonic may be sounded. What is the frequency of the first overtone? (Express your answer to two significant figures.)

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Stretched string

A stretched string is a wire which is made up of any metal that must have a larger length compared to its thickness. The ends of the wire are fixed, and when they oscillate or are plucked, it produces two reflected transverse waves of the same frequency and same amplitude. The waves or pulses are traveling in alternate directions and superimpose with one another. This waveform is named standing or stationary waves.