Which one of the following is not an example of resonance? Two tuning forks together producing sound that fluctuates in loudness, or a wine glass shattering by singing a certain pitch, or a child pushed on a swing to greater and greater heights, or the larger than average tides in the Bay of Fundy? Explain

Which one of the following is not an example of resonance? Two tuning forks together producing sound that fluctuates in loudness, or a wine glass shattering by singing a certain pitch, or a child pushed on a swing to greater and greater heights, or the larger than average tides in the Bay of Fundy? Explain

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If one doubles the tension in a violin string, the fundamental frequency of that string will increase by a factor of (a) 2 (b) 4 (c) 1.4 (d) 1.7 (e) None of the above
In the normal mode of a vibrating string, multiple frequencies are present and one of these is the fundamental frequency of oscillation. The other frequencies present are called: harmonics; The answer cannot be found in the other choices. octaves; overtones;
#1: Why do guitar strings sound different when you pluck them, even though they are the same length?
A nylon string fixed at both ends vibrates with a fundamental frequency of 196 Hz. Which of the following would have a higher fundamental frequency than this string? An indentical string that is longer. A nylon string with twice the diameter, but the same length. An indentical string that is tightened to a higher tension. An identical string that is given a larger amplitude of vibration.
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A thin metal wire is stretched tightly between two fixed wooden posts. Which of the following actions will cause the wire to generate waves?
Can you please help me find the frequencies and amplitudes? Thank you!
10.) see photo for details