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.
Independence Day (United States) Independence Day, also referred to as the Fourth of July or July Fourth, is a federal holiday in the United States commemorating the adoption of the Declaration of Independence on July 4, 1776. The Continental Congress declared that the thirteen American colonies regarded themselves as a new nation, the United States of America, and were no longer part of the British Empire. The Congress actually voted to declare independence two days earlier, on July 2. Independence Day is commonly associated w