a unit of mass used in particle physics. Mass and energy are related by Einstein's famous equation, E = mc 2. The constant c is the speed of light, 299.79 x 10 6 m/sec. An energy of 1 electronvolt is therefore equivalent to a mass of about 1.782 662 x 10-33 gram, or about 1.073 544 x 10-9 atomic mass unit.
Yulee is a census-designated place (CDP) in Nassau County, Florida, United States. The population was 11,491 at the 2010 census.
US 17 to close for two days while Yulee railroad crossing replaced. Jun 12,2015 at 10:28 AM EST. US-17 will close in both directions for two days at the Yulee railroad crossing June 24 & 25 as crews work to replace it.