Fundamentally, momentum conservation is linked to invariance under space translations. See Noether's theorem. If you want to find a system that does not conserve momentum you should look for situations where space is not uniform, e.g. balls rolling on the surface of a bowl, a planetary system (when the dynamics of the sun is neglected), etc.
Socorro is a city in Socorro County in the U.S. state of New Mexico. It is in the Rio Grande Valley at an elevation of 4,579 feet (1,396 m). In 2012 the population was 8,906.
The 2016 Albuquerque Metro Area, New Mexico, population is 907,301. There are 98 people per square mile (population density). The median age is 36.9. The US median is 37.4. 47.41% of people in Albuquerque Metro Area, New Mexico, are married. 13.47% are divorced.