What is a physical systemSolutionA physical system is a port

What is a physical system?

Solution

A physical system is a portion of the physical universe chosen for analysis. Everything outside the system is known as theenvironment. The environment is ignored except for its effects on itself. In a physical system, a lower probability states that the vector is equivalent to a higher complexity.

The portion of the physical universe chosen for analysis, with everything outside the system known as the environment.

It\'s all the objects within a given volume needed to solve a particular physics problems. Theoretically, if you provide a physical description of the objects (like their mass, position, orientation, angular momentum, velocity, shape, and (for more complicated problems) higher order properties like elasticity and chemical constituents *and* the boundary conditions of the system (how it interacts with the rest of the world), you can calculated what will happen over time. A \"closed system\" (the most popular kind) is one in which there is no relavent interaction with anything outside the system.

Everything in the universe that is observable (including the universe itself) is technically part of one or another \"physical system\". The term is used to distinguish it from things like political systems and mathmatical systems, which are abstract relationships, as opposed to objects.

The physical systems are chosen to illustrate the physical phenomena that result in different forms of this equation related to several types of geometric nonlinearity: hardening, softening, positive linear-negative cubic nonlinearity and pure nonlinearity. The equations of motion are derived and are then non-dimensionalised.

The split between system and environment is the analyst\'s choice, generally made to simplify the analysis. For example, the water in a lake, the water in half of a lake, or an individual molecule of water in the lake can each be considered a physical system. An isolated system is one that has negligible interaction with its environment. Often a system in this sense is chosen to correspond to the more usual meaning of system, such as a particular machine.

In the study of quantum coherence the \"system\" may refer to the microscopic properties of an object (e.g. the mean of a pendulum bob), while the relevant \"environment\" may be the internal degrees of freedom, described classically by the pendulum\'s thermal vibrations