1- A Horseshoe bat, hunting moths, emits a sound of frequency 85.0 kHz. What is the wavelength of the sound? Use 340 m/s for the speed of sound in air.
2- If the moth is 1.0 cm long, will be able to locate it?
3- One of the ways the bat measures the distance to the moth is by detecting the time delay between the emitted sound and the echo. If the moth is 1.5 meters away, how long after the bat emits the wave will it hear the echo from the moth?
Moreover, to find the direction where the echo comes, they use binaural hearing, detecting the time delays between the receipt of sound at one ear and the other, as well as the difference in sound intensity.
4- If the distance between the ears is 1.5 cm, and the sound is traveling parallel to the line joining the two ears, what is the time delay?