Perfectly elastic collisions are those in which no kinetic energy is lost in the collision. Macroscopic collisions are generally inelastic and do not conserve kinetic energy, though of course the total energy is conserved as required by the general principle of conservation of energy.
Ector, Texas. Not to be confused with Ector County, Texas. Ector is a city in Fannin County, Texas, United States. The population was 695 at the 2010 census, up from 600 at the 2000 census.
Cuero is a city in DeWitt County, Texas, United States. The population was 6,571 at the 2000 census. It is the county seat of DeWitt County. It is also unofficially known as the turkey capital of the world (this is reflected in the Cuero High School mascot, the Gobblers). In 2010, Cuero was named one of the 'Coolest Small Towns in America,' by Budget Travel Magazine.