Top answers


Why is an alloy harder than a pure metal?

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.
AC
Answered by Anjalee C. Chemistry tutor
9631 Views

How do I make my personal statement effective?

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 commitment...
AT
2293 Views

How should I prepare for an English exam?

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 this, ...
NE
Answered by Nathalie E. English tutor
2537 Views

A = {multiples of 5 between 14 and 26}. B = {odd numbers between 14 and 26}. List the members of A∪B and A∩B.

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 {15,17,19,21,23,25,15,2...
LP
Answered by Luke P. Maths tutor
16322 Views

∫2x(x+2)^(1/2) dx evaluated from 0->2

First make a substitution so we can apply the power rule ∫x n dx = (x n+1 )/(n+1) + C more simply. Can see u=x+2 means (x+2) 1/2 -> u 1/2 and so will help us apply this rule. Change dx/du=1 implies dx = d...
LP
Answered by Luke P. Maths tutor
13403 Views