Momentum is not conserved if there is friction, gravity, or net force (net force just means the total amount of force). What it means is that if you act on an object, its momentum will change. This should be obvious, since you are adding to or taking away from the object's velocity and therefore changing its momentum.
Somerville, Massachusetts. Somerville (/ËsÊmÉrvÉªl/ SUM-Ér-vil) is a city located directly to the northwest of Boston, in Middlesex County, Massachusetts, United States. As of 2010, the United States Census has the city with a total population of 75,754 people, and is the most densely populated municipality in New England.
What is the Population of Massachusetts November 16, 2017 United States The Population of Massachusetts as per July 1st, 2016 estimate, is 6,811,779 (Six million eight hundred eleven thousand seven hundred seventy-nine). The last official US Government census was done in 2010, and the population as per that census was 6,547,629 (Six million five hundred forty-seven thousand six hundred twenty-nine). Here is a compilation of county-wise population data for the state in tabular format: