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The question comes from the quadratic equation r = (-b +- sqrt(b² - 4ac)/2a where r is the root or x coordinate where the line crosses the x-axsis (the y coo...

Once you have cracked the formula for doing an essay, you will start to see your grades get better and better. I always remember what I have to write by thinking of PEEL and FSL. But what do these have to...

First, to break down this sort of question we should read each physical unit (W(atts) in this case) as its equivalent statement. ie 1W=1Js^-1, if this is not intuitive, think of the basic equation P=E/t. ...

The main muscle of normal quiet breathing is the diaphragmDuring Inspiration, it contracts which causes it to flatten. This increases the volume of the thoracic cavity and so the pressure decreases. This ...

It is arguable that there were other equally significant turning points in warfare, such as the advent of the aviation and the railways, the use of chemicals and the invention of the nuclear bomb; however...