The velocity of sound in air is approximately 330 m/s. a) Given that, what is the frequency of a sound wave with wavelength 16.5 m? b) This happens to be how Elephants communicate, what type of sound is this?

Sound is detected when a sound wave causes the eardrum to vibrate. Typically, the diameter of the eardrum is about 8.0mm in humans. When someone yells to you in a noisy environment, the sound intensity at your ear sometimes approximates 2 x 10-6 W/m2. Suppose that the 2 x 10-6 W/m2 of sound you are hearing comes from a janitor cleaning a rug by pulling a vacuum cleaner (at the end of a 1-meter-long tube oriented perpendicularly to the line separating you from the janitor). This person is yelling just over the din of the appliance in order to be heard by you. Estimate the distance between you and the janitor

A bat can detect small objects, such as an insect, whose size is approximately equal to one wavelength of the sound the bat makes. If bats emit a chirp at a frequency of 7.69  104 Hz, and if the speed of sound in air is 343 m/s, what is the smallest insect a bat can detect? ?mm

A) You are in Switzerland and decide to try yodeling. You are facing a cliff some distance away. If the speed of sound is 340 m/a and you hear the echo 1.5 seconds after you begin to yodel, how far away is the cliff? The sound travels to the cliff and back during the 1.5 seconds.   B) If your yodel is at frequency 600 Hz, what is the wavelength of the sound?