Common carrier. A common carrier in common law countries (corresponding to a public carrier in civil law systems, usually called simply a carrier) is a person or company that transports goods or people for any person or company and that is responsible for any possible loss of the goods during transport.
Best Answer: Torque is a twisting force. It is the power output of an engine at one specific point in time. The first number, 200 in your expample, is the amount of torque. In America is is measured in foot/pounds. The second number, 400 in your example, is the RPM where that torque number occurs.
A torque is generated by a pair of forces, similar in magnitude, opposite in direction, and parallel to each other. These two forces are separated by a finite distance. In physics, the term moment also has the same meaning as torque.Torque is defined as the tendency of a force to rotate an object about an axis, a fulcrum, or a pivot. A torque can also be provided using a single force acting at a distance r from the axis of rotation. torque is generated by a pair of forces, similar in magnitude, opposite in direction, and parallel to each other. These two forces are separated by a finite distance. In physics, the term moment also has the same meaning as torque.