Moreover, pressure does not have to be measured along the wall of a container but rather can be measured as the force per unit area along any plane. Air pressure, for example, is a function of the weight of the air pushing down on Earth. Thus, as the altitude increases, pressure decreases.
physical features. The American Bobtail is a powerful and heavy cat with strong bones and muscles. Its medium-length legs complement the torso displaying powerful muscles and strong bones. The tail, which differentiates it from other breeds, is short-being between 2.5 cm to 10 cm (1 inch - 4 inches) in length. The tail should be flexible and can be slightly curled or even 'knotted'. Despite the length, this little tail has a good plume and long, shaggy, thick hair covers the tail.
Male bobcats are slightly larger and heavier than females. Most adult males weigh 20 to 22 pounds, while females average 18 to 19 pounds. Individuals may be much larger at times, especially in the northern states where many mature males may weigh 30 pounds. The heaviest recorded bobcat was taken in Maine and weighed 76 pounds. Bobcats have short tails of 5 to 6 inches in length. The underside of the tail is whitish, and there is a black spot near the end of the tail. Lynx can be confused with bobcats in northern areas, but the lynx tail is totally black, top and bottom, over the entire end of the tail.