A bat moving at 23 ms is chasing a flying insect the bat
A bat moving at 2.3 m/s is chasing a flying insect. The bat emits a 51 kHz chirp and receives back an echo at 51.33 kHz. At what speed is the bat gaining on its prey? Take the speed of sound in air to be 342 m/s.
Answer in units of m/s
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