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The work can be done, for example, by generators, (electrochemical cells) or thermocouples generating an electromotive force. Electric field work is formally equivalent to work by other force fields in physics, [1] and the formalism for electrical work is identical to that of mechanical work.
The ancient Greek understanding of physics was limited to the statics of simple machines (the balance of forces), and did not include dynamics or the concept of work. During the Renaissance the dynamics of the Mechanical Powers, as the simple machines were called, began to be studied from the standpoint of how far they could lift a load, in addition to the force they could apply, leading ...
Some of the major unsolved problems in physics are theoretical, meaning that existing theories seem incapable of explaining a certain observed phenomenon or experimental result. The others are experimental, meaning that there is a difficulty in creating an experiment to test a proposed theory or investigate a phenomenon in greater detail.
Moreover, both ja and doch are frequently used as additional particles for conveying nuanced meaning where, in English, no such particle exists. Straightforward, non-idiomatic, translations from German to English and then back to German can often result in the loss of all of the modal particles such as ja and doch from a text. [62] [63] [64] [65]
The question is whether or not, for all problems for which an algorithm can verify a given solution quickly (that is, in polynomial time), an algorithm can also find that solution quickly. Since the former describes the class of problems termed NP, while the latter describes P, the question is equivalent to asking whether all problems in NP are ...
In solid-state physics, the work function (sometimes spelled workfunction) is the minimum thermodynamic work (i.e., energy) needed to remove an electron from a solid to a point in the vacuum immediately outside the solid surface. Here "immediately" means that the final electron position is far from the surface on the atomic scale, but still too ...
Physics – 39 points. Chemistry (work with a real experiment) – 38 points. Biology – 47 points. Geography – 31 points. Social Studies – 37 points. History – 37 points. Literature – 42 points. Information and communications technologies – 21 points. Foreign languages (English, German, French, Spanish) – 68 points. Native ...
In physics, exertion is the expenditure of energy against, or inductive of, inertia as described by Isaac Newton's third law of motion. In physics, force exerted equivocates work done. [ 3 ] The ability to do work can be either positive or negative depending on the direction of exertion relative to gravity.
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