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Hipervinculo Química
"Transition metals are in the d-block and have valence electrons in the d-orbital's. They can form multiple oxidation states and form different ions. Iron, Cobalt and Nickel are ferromagnetic. Inner t ...
"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 ...
Video Física
"Insulators, also called dielectrics, don't conduct charge. In insulators, there is no conduction band so charge does not move to any appreciable extent. Dialectric strength, also called breakdown v ...
"Torque, also called movement of force, measures how much a force rotates an object around an axis. Torque is the cross product of the force vector and the vector of the distance from the axis. The fo ...
"Instantaneous velocity is the velocity of an object in motion at a specific point in time. This is determined similarly to average velocity, but we narrow the period of time so that it approaches zer ...
Video Física
"We use the words toppling and stability in our everyday world. Toppling means that an object will easily fall over while stabliity means that an object can resist falling over. " Fuente: BrightStormT ...
Hipervinculo Biología
"Tissues and organs are the basic structural units of our bodies. Tissues are collections of cells which serve the same function while organs are collections of tissues. Organ systems are composed of ...
"Ocean tides are the rising and falling of the sea due to variations in the gravitational pull of the moon on opposite sides of the Earth. Tides are a type of wave with regular frequencies and periods ...
"The three states of matter, also called the phases of matter, are solid, liquid and gas. Matter changes phases based upon thermodynamic principles like enthalpy and entropy. At room temperature, diff ...
Hipervinculo Química
"Thermochemical equations are balanced chemical equations that include the physical states of all reactants and products and the energy change. If energy is a reactant, the reaction is endothermic but ...
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