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The work of forces generated by a potential function is known as potential energy and the forces are said to be conservative. Therefore, work on an object that is merely displaced in a conservative force field, without change in velocity or rotation, is equal to minus the change of potential energy E p of the object, =.
In physics, a conservative force is a force with the property that the total work done by the force in moving a particle between two points is independent of the path taken. [1] Equivalently, if a particle travels in a closed loop, the total work done (the sum of the force acting along the path multiplied by the displacement ) by a conservative ...
Thermodynamic work is one of the principal kinds of process by which a thermodynamic system can interact with and transfer energy to its surroundings. This results in externally measurable macroscopic forces on the system's surroundings, which can cause mechanical work, to lift a weight, for example, [1] or cause changes in electromagnetic, [2] [3] [4] or gravitational [5] variables.
The difference between a conservative and a non-conservative force is that when a conservative force moves an object from one point to another, the work done by the conservative force is independent of the path. On the contrary, when a non-conservative force acts upon an object, the work done by the non-conservative force is dependent of the path.
Work is dependent on the displacement as well as the force acting on an object. As a particle moves through a force field along a path C , the work done by the force is a line integral : W = ∫ C F ⋅ d r {\displaystyle W=\int _{C}\mathbf {F} \cdot d\mathbf {r} }
The work per unit of charge is defined by moving a negligible test charge between two points, and is expressed as the difference in electric potential at those points. The work can be done, for example, by electrochemical devices (electrochemical cells) or different metals junctions [clarification needed] generating an electromotive force.
The liberal “do the work” position zeros in on individual self-education. And the conservative position asks us to see each other as individuals, separate from the legacy of the past.
The formula above for the principle of virtual work with applied torques yields the generalized force = = / = The mechanical advantage of the gear train is the ratio of the output torque T B to the input torque T A , and the above equation yields M A = T B T A = R . {\displaystyle MA={\frac {T_{B}}{T_{A}}}=R.}