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The difference is a bit subtle. Velocity is speed in a particular direction.

So, for example, a car travelling at 50 miles per hour round a bend is travelling at constant speed. Its direc...

Oxford - Use percentage of A*s at GCSE (Ideal candiates will need close to 90% or above)

Birmingham - Usually require 7 A*s plus

Cardiff - Usually require 7 A*s plus

The first step is to find dy/dx.

To do this you must first expand the brackets.

x² + y² + 2xy = xy²

Then differentiate each te...

The multiple choice section of the LNAT is a verbal reasoning and critical thinking marathon (95 minutes long). The average score in most years is below 50%. To prepare your brain for this intense peri...

FOR GCSE & A LEVELOVERVIEW: A just war is one that is fought for the correct reasons and on the basis of virtuous principles. In this c...