The combined gas law has no official founder; it is simply the incorporation of the three laws that was discovered. The combined gas law is a gas law that combines Gay-Lussac’s Law, Boyle’s Law and Charle’s Law. Boyle’s law states that pressure is inversely proportional with volume at constant temperature. Charle’s law states that volume is directly proportional with temperature at constant pressure. And Gay-Lussac’s law shows that pressure is directly proportional with temperature at constant volume. The combination of these laws known now as combined gas law gives the ratio between the product of pressure-volume and the temperature of the system is constant. Which gives PV/T=k(constant). When comparing a substance under different conditions, the combined gas law becomes P1V1/T1 = P2V2/T2.
A.) the gravitational pull of the Sun
B.) the interstellar dust attracting heat away from the protosun
C.) the process of nuclear fusion
D.) the nebular cloud condensing
The answer;
In a conductor, the electric current can flow freely; in an insulator, it cannot flow freely.
Electrical conductance is the measure of the ease to pass an electric current through a material. Conductors usually have free electron in their bonds that enable them to carry electric current end to end. The higher the free electrons the higher the conddictivity. Insulators on the other and have no free electrons with this regard. Having free electrons in the structure is mainly determined by the electron configuration of the atoms of the element.
The correct statement is "In a conductor, electric current can flow freely; in an insulator, it cannot flow freely." The correct option is C.
A conductor is a material that allows the flow of electric current due to the presence of free electrons that can move easily. An insulator, on the other hand, is a material that restricts the flow of electric current because its electrons are tightly bound and cannot move freely.
A. Conductors have magnetic fields; insulators do not have magnetic fields.
This statement is not true. Both conductors and insulators can have magnetic fields, depending on the circumstances. The presence or absence of magnetic fields is not a defining characteristic that distinguishes conductors from insulators.
B. Conductors do not have magnetic fields; insulators do have magnetic fields.
This statement is also not true, for the same reasons mentioned above. Both conductors and insulators can have magnetic fields.
D. In a conductor, electric current cannot flow freely; in an insulator, it can flow freely.
This statement is the opposite of the correct option. In a conductor, electric current can flow freely because conductors have a large number of free electrons that are loosely bound to their atoms and are able to move easily in response to an electric field. In contrast, in an insulator, electric current cannot flow freely because insulators have tightly bound electrons that are not free to move, thus hindering the flow of electric current.
Therefore, option C is the correct one as it accurately describes the difference between conductors and insulators based on their ability to allow the flow of electric current.
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Principles of relative dating
Uniformitarianism. ...
Intrusive relationships. ...
Cross-cutting relationships. ...
Inclusions and components. ...
Original horizontality. ...
Superposition. ...
Faunal succession. ...
Lateral continuity.
https://en.wikipedia.org/wiki/Relative_dating
A = side length (L/2) ; distance between plates (d) ; dielectric current (k)
B = side length (L) ; distance between plates (d/2) ; dielectric current (4k)
C = side length (2L) ; distance between plates (d) ; dielectric current (2k)
D = side length (L) ; distance between plates (2d) ; dielectric current (2k)
The capacitance of the four capacitors, ranked from highest to lowest, is B = C (they both have equal capacitance), followed by D, and then A.
The capacitance of a parallel-plate capacitor is given by C = εA/d, where ε is the permittivity of the dielectric material (which is equal to the product of the vacuum permittivity and the relative permittivity or dielectric constant k), A is the area of one of the plates, and d is the separation between the plates.
Applying this formula to the four capacitors and simplifying:
When ranked from highest to lowest capacitance, the order will be B = C > D > A.
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