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Horseshoe bats use the Doppler effect to determine their location. A horseshoe bat flies toward a wall at a speed of 15.4 m/s while emitting

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Horseshoe bats use the Doppler effect to determine their location. A horseshoe bat flies toward a wall at a speed of 15.4 m/s while emitting a sound of frequency 35.2 kHz. What is the beat frequency between the emission frequency and the echo? The speed of sound at this temperature is 343 m/s

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