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.
Nenana, AK (Alaska) Houses and Residents. Total population: 376 (Urban population: 0, Rural population: 460 (all nonfarm)) Houses: 224 (187 occupied: 105 owner occupied, 53 renter occupied) Housing density: 37 houses/condos per square mile. Median price asked for vacant for-sale houses and condos in 2015: $280,423.