I don't understand what you are looking for. I can tell you that the speed of molecules does change during state changing.
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Giddy UP!!!!!!!!!!!!!!!!!!!!!
Answer:
As the tines of the tuning fork vibrate at their own natural frequency, they created sound waves that impinge upon the opening of the resonance tube. These impinging sound waves produced by the tuning fork force air inside of the resonance tube to vibrate at the same frequency.
Answer:
First one, third one, and fourth one
The sound wave would behave differently in a swimming pool than in his bedroom because sound waves travel faster in more dense mediums; such as water. The wave will travel faster in water, and slower in air.
