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 is located in west Oregon. Springfield is part of Lane County. Springfield has 15.74 square miles of land area and 0.01 square miles of water area.As of 2010, the total Springfield population is 59,403, which has grown 12.37% since 2000. The population growth rate is about the same as the state average rate of 11.97% and is higher than the national average rate of 9.71%.pringfield has 15.74 square miles of land area and 0.01 square miles of water area. As of 2010, the total Springfield population is 59,403, which has grown 12.37% since 2000. The population growth rate is about the same as the state average rate of 11.97% and is higher than the national average rate of 9.71%.