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Conduction, where particles within a conductor gain energy as they heat up and vibrate more vigorously passing energy onto adjacent particles as they collide. Convection, which only occurs in fluids, as f...

First we assign, for example, that x = cost of 1 book, and y = cost of 1 apple. Then we make these into simultaneous equations, such as: 3x+2y=19 (eqn. 1) and x+5y=15 (eqn. 2). Now multiply eqn. 2 to get ...

The subjunctive is a mood and not a tense unlike the perfect, imperfect, present and future. It is used to express doubt, desire, commands and fears. For example "il faut que" (command), j'ai pe...

Ariel and Caliban are two characters liberated at the end of the play, and left behind on the island when Prospero, their master, leaves. It is made clear very early on that neither creature is at liberty...

Taking 5 minutes to write a plan gives you the best possible chance of writing a good essay. It may seem tempting to go straight into writing given the time pressure but this does more harm than good, as ...