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5 Votes
 Wavelength: Light travels in glass at a speed which is approximately 65 percent of it maximum speed. Determine the frequency of light in Hertz (Hz) for a monochromatic light with a wavelength of 689 nanometers.Expired on
2019-02-27 14:00:00
3 Votes
 Time: The speed in which light travels is nearly 186,000 miles per second. Radio waves travel at this same speed. If your space ship was on its way to the Jupiter, having traveled 29 percent of the Earth-Jupiter distance, how long in seconds would it take to announce to Earth your location via a radio transmission?Expired on
2019-02-27 14:00:00
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