Calculate the specific weight of your object. Specific weight refers to the weight of an object per unit volume. The formula for calculating specific weight is Density multiplied by the Acceleration of Gravity. The acceleration of gravity is 9.81 meters per second squared (m/s2) or 32.2 feet per second squared (ft/s2).
McAlester is a city in Pittsburg County, Oklahoma, United States. The population was 17,783 at the 2000 census. It is the county seat of Pittsburg County. It is currently the largest city in the Choctaw Nation of Oklahoma, followed by Durant.
In the north central part of Oklahoma, extending south from the Kansas border to the Red River, is the Sandstone Hills Region. The Sandstone Hills are from 250 to 400 feet high. Some are covered with Blackjack and Post Oak forests. It was in this region that early oil development commenced in Oklahoma. The Arbuckle Mountains comprise an area of about 1,000 square miles in south-central Oklahoma. The low mountains rise about 600 to 700 feet above the plains.