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A demerit good is a good which has a negative impact on its consumer and others in society. An example of this is alcohol, which can cause health problems for people who drink it, but also leads to extern...

y = 2x + 5 + 27x^-2To find a stationary point, find the gradient function by differentiating with respect to x:y' = 2 -54x^-3To find a stationary point, let the gradient function equal...

Escape velocity is the velocity required to just escape the gravitational pull of a body. The gravitational force of a body is given by Newtons Law:
F = GMm / r² (where G is the gra...

Mass spectroscopy is a highly sensitive method of analysing samples of elements and determining the isotopes present and their relative amounts. We can break down the method into four major steps: (in ord...

Having a definitive, consistently-argued view is one of the most important features of a good history essay. However, a good essay will also consider other perspectives. Rather than viewing the task of ba...