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Observations as a research method requires the researcher to watch subjects in a natural or artificial setting and record their behaviour. One advantage of naturalistic observations is that they take plac...

Sometimes it is more useful for us to represent a vector in terms of other vectors added together. For example, we can split a vector into the vectors pointing in the direction of our axes, we call these ...

Many factors caused the outbreak of the First World War in the summer 1914, such that historians cannot agree on a single prime cause. Despite this, the key factors can be identified as the long-term crea...

45 femtometers to two significant figures

Differentiate to find dy/dx = 3x + 2;at point (-1,0) dy/dx = -1substitute in to y = mx + c, noting m = -1 and the line passes through (-1,0) yields c = -1y = -x - 1, simple to sketch this line.curve sketc...