It is based on the principle that each organization is composed of a system of interrelated processes. It appears in all energy transformations, but with little or no ability to perform new transformations and produce useful changes in bodies. Deming’s theory of profound knowledge is a management philosophy grounded in systems theory. For example, the kinetic energy is of high quality because it can be transformed into mechanical energy, radiant energy or thermal energy.īy contrast, the thermal energy is a low-quality energy. It is a fact that some forms of energy are more profitable than others. This means that after each transformation energy is less profitable for further transformations: energy is degraded. To have a Stirling run continuously you need to have a hot. Equation 4: Ideal Stirling thermal efficiency is equal to the Carnot efficiency. Therefore, the Carnot efficiency at a given hot section and cold section temperature is equal to the Stirling efficiency between the same hot and cold sections. However, the quality of this energy decreases. The Stirling engine is one example of this. In any process, the total amount of energy in the universe remains constant. We will keep in mind that they started at rest, so the initial. If there is friction, part of the mechanical energy is dissipated as heat.Įnergy is neither created or destroyed, it’s only transformed. The work-energy principle tells us to set the change in kinetic energy equal to the net work. This only occurs in the absence of friction. When a body falls, potential energy it loses, is the kinetic energy it gains, but the sum of kinetic and potential energy remains constant. However, we can study the mechanical energy when it is transformed from one to another or when it is transferred from one place to another. It is impossible to observe the mechanical energy in an object. That is, it is the sum of the kinetic and potential energies. It is the energy acquired by a body when a work is performed on it at a certain height. It is the energy that measures the ability of the system to perform work solely according to its position or configuration. For the body, to return to its resting state it is required a negative work of the same magnitude as its kinetic energy. Once this energy has been gained during acceleration, the body maintains its kinetic energy unless its speed changes. It is defined as the need to accelerate a body having a given mass from rest to the speed indicated. Is the energy that bodies have due to their movement. Work is a scalar physical quantity is represented by the letter W (English Work) and expressed in energy units, this is in joules or joules (J) in the International System. As a result of this action, the work is a way of transferring energy from one body to another. To do a work in physics involves applying a force on a body and move it.
On Physics has nothing to do with physical exertion work.
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