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Hipervinculo Química
"A chemical equation shows the reactants and the products of a chemical reaction. Balancing chemical equations is necessary because the same atoms should be present before and after the reaction, just ...
"The nitrogen cycle follows the movement of nitrogen in its different forms. Nitrogenous gas makes up 80% of the atmosphere and most nitrogen enters into the ecosystem via nitrogen-fixing bacteria, bu ...
"One method for solving for a missing length or angle of a triangle is by using the law of cosines. The law of cosines, unlike the law of sines, is similar to the Pythagorean theorem, but it works for ...
Video Física
"Electric circuits are one or more loops of wire which allow current to flow all the way around, usually driven by a battery which maintains a potential difference to keep current flowing. Light bulbs ...
"Since Pythagorean theorem proofs requires us to square numbers and find square roots, reviewing square root operations from Algebra is really important. When working with the Pythagorean theorem, it ...
"In any triangle, the largest angle is opposite the largest side (the opposite side of an angle is the side that does not form the angle). The shortest angle is opposite the shortest side. Therefore, ...
"Transformers are used to change one current into another current. Step up transformers increase the voltage of the current while step down transformers decrease the voltage. In power transmission, wh ...
Hipervinculo Física
"An electric field is the ratio between the force felt by a small charge and that small charge. The small charge is called the test charge. This force can be found using Coulomb's law. Electric field ...
Hipervinculo Química
"Isomers are compounds of the same molecular formula but different molecular structures. There are four important types of isomers. Structural isomers’ atoms are bound in different orders while stere ...
Video Matemáticas
"The area of circles is derived by dividing a circle into an infinite number of wedges formed by radii drawn from the center. When these wedges are rearranged, they form a rectangle whose height is t ...
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