1. A biological sonar activity used by animals to locate and identify nearby objects by sending ultrasounds and "hearing" them reflected back from them. B a. reverberation b. Echolocation c. Doppler effect d. resonance 2. Mechanical waves do not travel through a. solid b. free space c. gas d. liquid
1. A biological sonar activity used by animals to locate and identify nearby objects by sending ultrasounds and "hearing" them reflected back from them. B a. reverberation b. Echolocation c. Doppler effect d. resonance 2. Mechanical waves do not travel through a. solid b. free space c. gas d. liquid
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Please answer 1 to 3
Transcribed Image Text:1. A biological sonar activity used by animals to locate and identify nearby objects by sending
ultrasounds and "hearing" them reflected back from them.
B
a. reverberation
b. Echolocation
c.
Doppler effect
d. resonance
2. Mechanical waves do not travel through
a. solid
b. free space
c. gas
d. liquid
3. All shock waves are
a. long wavelength wavefront as a result of constructive interference of two in-phase waves
b. high frequency waves emerging from wave sources moving across dense media
c. complex waveform resulting from resonance of different sympathetic sources
d. high amplitude pulses born out of wave source moving faster than the wave
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