true or false
4) sound cannot travel through solid?
5) molecules at higter temperature vibrat faster?
6) sound can travel through solids, liquids, and gases but not in a vacuum?
7) repeated echo is khown as resonance?
4) sound cannot travel through solid?
5) molecules at higter temperature vibrat faster?
6) sound can travel through solids, liquids, and gases but not in a vacuum?
7) repeated echo is khown as resonance?
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Answer:
4)true
5)true
6)true
7)false