All rights reserved. Types of contractions. When we think of a muscle contracting normally, we tend to think of the muscle shortening as it generates force. While it's true that this is a way of muscle contracting, there are many different ways that a muscle can generate force, as seen in Figure 1 below.
New York City is the most-populous city in the United States, with an estimated record high of 8,491,079 residents as of 2014, incorporating more immigration into the city than outmigration since the 2010 United States Census.
Its population density for 2016 is estimated at 27,806.8 people per square mile or 10,742.1 people per square kilometer, which is the densest city in the country. The population of New York City Metropolitan Area for 2016 is estimated at 19,999,127, which is one of the most populous metropolitan areas in the world. Since the 2010 Census, the metropolitan area population is estimated to have grown by about 431,717 or by an average annual growth rate of 0.55%.