In this case, must be zero, implying that the total angular momentum of a system is constant. We can state this verbally: If no net external torque acts on a system, the total angular momentum of the system remains constant. This statement describes the conservation of angular momentum. It is the third of the major conservation laws encountered in mechanics (along with the conservation of energy and of linear momentum). There is one major difference between the conservation of linear momentum and conservation of angular momentum. In a system of particles, the total mass cannot change. However, the total moment of inertia can. If a set of particles decreases its radius of rotation, it also decreases its moment of inertia.
Lebanon, New Hampshire, in Grafton county, is 60 miles NW of Manchester, New Hampshire and 107 miles NW of Boston, Massachusetts. About 12,568 people live in Lebanon. The Town of Lebanon was chartered on July 4, 1761 by Colonial Governor Benning Wentworth.
New Hampshire (US /nuËËhÃ¦mpÊÉr/) is a state in the New England region of the northeastern United States. It is bordered by Massachusetts to the south, Vermont to the west, Maine and the Atlantic Ocean to the east, and the Canadian province of Quebec to the north. New Hampshire is the 5th smallest by land area and the 9th least populous of the 50 United States.