Examlex
Calculate the wavelength (in nm) of the red light emitted by a neon sign with a frequency of
4.74 × 1014 Hz.
Travel
The movement of people between distant geographical locations, which can be done by foot, bicycle, automobile, train, boat, bus, airplane, or other means.
Sound Registering
The process of detecting and recognizing sound waves by auditory systems.
DbA
DbA refers to a unit of measurement for sound intensity, adjusted to the human ear's response to different frequencies, indicating the apparent loudness of sounds.
Mass Transit
Public transportation systems designed to move large numbers of people efficiently across cities and other populated areas.
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