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.
Yuba County. During the Gold Rush days, Marysville (in Yuba County), on the east bank of the Feather River, overshadowed Yuba City since it was easier for miners arriving by riverboat from San Francisco and Sacramento to reach the gold fields to the east.