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• n  the ratio of the distance traveled (in kilometers) to the time spent traveling (in hours)

• kilometers per hour
• kph
• km/h

News & Articles

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• ALMA observes the drama of starbirth
  Young stars are violent objects that eject material at speeds as high as one million kilometres per hour. When this material crashes into the surrounding gas it glows, creating a Herbig-Haro object. read more        
  Aug. 21, 2013 - TG Daily