Chemistry, 26.10.2021 02:40 jboii11

PLEASE HELP I BEG Q2 answer in one word
1.two important properties of any sound
2.time taken by a vibrating body to complete one vibration
3. vibration of frequency higher than 20000 Hz

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PLEASE HELP I BEG Q2 answer in one word
1.two important properties of any sound
2.time...