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.

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