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The atoms in an alloy are of different sizes so the layers are distorted and therefore, due to a lack of proper layers harder from them to slide over each other.

Firstly, choose experience which is relevant and truly demonstrates the particular skill which you will be writing about. Ensure your experience is recent as well as something which you have shown commitm...

I would begin by reading and re-reading your texts at least two or three times before your exam, more if your revision timetable allows. Make notes and highlight key quotations and moments while doing thi...

First write down explicitly what the elements of A and B are.A={15,20,25}, B={15,17,19,21,23,25}.
Remember ∪ means OR. So A ∪ B is the set of items which are in either A OR B. This is {15,17,19,21,23...

First make a substitution so we can apply the power rule ∫xⁿ dx = (xⁿ⁺¹)/(n+1) + C more simply. Can see u=x+2 means (x+2)^1/2 -> u^1/2 and so will help us appl...