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Thinking Critically

1. What is the ultimate transformation of the energy of sound in the air?

2. If the frequency of sound is tripled, (a) what will happen to its speed and (b) its wavelength?

3. What is the wavelength of a 31-kHz ultrasonic wave in air?

4. What is the distance to the cave wall of the bat flying that emits a sound and receives its echo 2 s later?

5. Ocean surveyors use ultrasonic sound equipment in surveying ocean bottoms. The ultrasonic sound travels 1 530 m/s in seawater. If the depth of the water is
1 670 m, what is the time delay of the echo from the ocean floor? ​

Thinking Critically 1 What Is The Ultimate Transformation Of The Energy Of Sound In The Air 2 If The Frequency Of Sound Is Tripled A What Will Happen To Its Spe class=

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Trixie0117viz

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  1. The vibrations are transformed into audible sound (from 20Hz to 20,000Hz, being Hz the unit of the sound waves frequency) by our brain. The transformation is from mechanical energy (movement) into electrical energy.
  2. ?
  3. ?
  4. the cave wall is 85.75 m away.
  5. an oceanic depth-sounding vessel surveys the ocean bottom with ultrasonic sound that travels 1530 m/s in seawater, and finds 6-second time delay of the echo to the ocean floor and back.

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d q po sure yung 5

yung 2-3 d q po knows sorry

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hope it's help✨

correct me if I'm wrong

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