Top answers

What was Hobbes' perspective on power?

Hobbes focused on one of the most common understandings of power. In the book Leviathan he discussed that "society is the sum of individuals who carry and constitute power". Power, then, 'flows' fr...
DH
Answered by Dyi H. • Sociology tutor
7395 Views

Why is Kinetic Energy mv^2/2?

Whilst this proof is beyond the scope of A level physics, it is well within the scope of A level Maths as it relies solely on the chain rule.First let us note that F x = W where F is force, x is distance and...
VP
Answered by Vandan P. • Physics tutor
7632 Views

How to sum an arithmetic progression?

Whilst it is very easy to just plug the numbers into the formula you are given on your formula sheet there is a much faster and more intuitive method of doing this. If we have n numbers beginning at a with a...
VP
Answered by Vandan P. • Maths tutor
6502 Views

What is sin(x)/x for x =0?

I'm going to show the answer to this question in two different ways. - The first is perhaps more obvious but the second is much more elegant.Taylor series expansion: Using Taylor expansion (or your trusty A ...
VP
44854 Views

The price of a TV is reduced in a sale by 30%. If the sale price is £280 what was the original price?

A question from 13 + specimen paper. After the price of TV is reduced 30 % the price is £280. This means that £280 is 70% of the original price. Therefore if you make an equation 280 x 100 / 70 you will get ...
TK
Answered by Taeseong K. • Maths tutor
18224 Views