For example in case of explosion of a particle into many fragments momentum is conserved in the x direction but not in the y direction where gravity is acting but if we consider the particle and Earth as a system the gravity force becomes an internal force and hence momentum is conserved for that system.
Compared to the rest of the country, Soldotna's cost of living is 26.90% Higher than the U.S. average. As of 2014, Soldotna's population is 4,209 people. Since 2000, it has had a population growth of 11.91 percent. Average Commute time is 15 minutes.
Funny River Fire map, May 25, 2014. The Funny River Fire at Soldotna, Alaska on the Kenai Peninsula grew on Saturday to cross the 100,000-acre threshold we have informally designated as a megafire, expanding to 123,649 acres according to the Incident Management Team.