An ultrasonic sensor emits sound waves with a frequency of 40 kHz. If the speed of sound in air is approximately 343 meters per second, what is the wavelength of these ultrasonic waves?
Wavelength = Speed / Frequency Wavelength = 343 m/s / 40,000 Hz Wavelength = 0.008575 meters
The wavelength of the ultrasonic waves is 0.008575 meters.