Units of measurement
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Kilometer per second (km/s)
Speed of light (c)
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Information
Kilometer per second (km/s)
Kilometer per second (km/s) is a unit of speed equal to one kilometer traveled per second. It is used in astronomy and high-speed research.
Speed of light (c)
Speed of light (c) is a fundamental physical constant equal to 299,792,458 m/s. It is the maximum speed at which information or matter can travel.