What does it mean to say that momentum is conserved? when momentum or any other object in physics doesn't change..... momentum = momentum before and after the collision. Elastic collision
The 2016 Springfield, Illinois, population is 116,565. There are 1,955 people per square mile (population density). The median age is 38.7. The US median is 37.4. 44.11% of people in Springfield, Illinois, are married. 14.83% are divorced.
Springfield, Tennessee. Springfield is a city in and the county seat of Robertson County, located in Middle Tennessee. The population was 16,478 at the 2010 census and 16,659 in 2013. Contents.