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One of the most noticeable ways in which the play addresses fate is through the usage of stars as a metaphor to embody its characteristics. Romeo & Juliet opens with a narrated prologue, during which ...

In order to solve this equation we need to rearrange it to have all of the variables on one side of the equals sign and the constants on the other. We do this by multiplying each term by the denominator o...

A easy way to solve simultaneous equations is to substitiute one equation into another and then equate to find one of the unknowns. Once this has been found its a simple matter of substituting it back int...

An alpha particle is made up of two neutrons and two protons. It is the same as the nucleus of a helium atom.

If a reaction is exothermic, it means that it gives out energy, heating up its surroundings, and so the products have less energy than the reactants.

If a reaction is endothermic, it means that it ...