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.
Wheaton is an area in Wheaton, DuPage County, Chicagoland, Illinois with a population of 59,428. There are 28,994 male residents living in Wheaton and 30,434 female residents. The total number of households is 21,312 with 2.65 people per household on average. Total household expenditures in Wheaton are above the national average. The median age of the current population is 38.33 with 22,616 people being married and 17,443 being single.