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This is a classic longer essay question. There was been long and varied debate amongst historians as to why the First World War broke out. 

The standard list of reasons for the outbreak o...

The ELAT is an unsual test for one main reason: it has no questions. Instead you are faced with six poems or extracts from texts, which all have a shared theme. Themes in the past have included Journey...

Students should begin with a brief discussion on the definition and features of the free market economy, with reference to concepts such as the invisible hand and to theorists such as Adam Smith.
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It must firstly be noted that, in general, the work done on an object is equal to its gain in energy.The trolley has gained kinetic energy. This can be calculated using the formula: "KE = (1/2)mv^2&q...

When differentiating cos inverse x, the typical method is to make y equal to cos inverse x.By taking cos of both sides: x = cosy.You can then differentiate with respect to y, obtaining that: (dx/dy) = - s...