In the pion, an up and an anti-down quark yield a particle of only 139.6 MeV of mass energy, while in the rho vector meson the same combination of quarks has a mass of 770 MeV! The masses of C and S are from Serway, and the T and B masses are from descriptions of the experiments in which they were discovered.
Independence Day 2018 is a federal holiday and falls on the fourth of July. The day of the week that the holiday falls on, changes each year. If July 4 is a Saturday, it is observed on Friday, July 3.
2016 Fourth of July in Phoenix: 27 fireworks displays, events, festivals around the Valley. PHOENIX - Happy 240th birthday, America! While the Fourth of July marks America's independence, it has become tradition to celebrate with fireworks, outdoor cook-outs, and if you live near a lake, boating. If you're still looking for a big firework show to watch, there are 27 displays happening around the Valley.