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What is economic globalisation, and why is it controversial?

Economic globalisation refers to the increasing interconnectedness between economies into a global economy which largely follows shared rules, aims and principles. This has been illustrated through the em...

Answered by Joe R. • Government and Politics tutor

4284 Views

How do you integrate (sinx)^3 dx?

Firstly, we must use the special property of trig functions which means that (sinx)ⁿis the same as sinⁿx. Likewise, (cosx)ⁿ=cosⁿx, (tanx)ⁿ=tan^n...

Answered by Shanti S. • Maths tutor

7094 Views

Show that 2(1-cos(x)) = 3sin^2(x) can be written as 3cos^2(x)-2cos(x)-1=0.

Firstly let's expand out the staring equation getting rid of any brackets. This gives: 2-2cos(x)) = 3sin^2(x). Now we can spot that the sin^2(x) term is in the first equation but no the final one. So let'...

Answered by Rebekah S. • Maths tutor

3704 Views

A matchbox of height h and uniform density stands on its end on a table with coefficient of friction μ. For accelerating it horizontally, at acceleration a, whilst upright, at which height y should the acceleration be applied?

Since the matchbox is of uniform density, the centre of mass is at the centre. In order to accelerate it horizontally, it must have zero resultant moment about the centre of mass, else it will rotate and ...

Answered by Dakshesh D. • PAT tutor

1689 Views

Deduce the main organic product for the reaction of benzene with nitric acid in the prescence of sulfuric acid, and provide a complete mechanism for this reaction. (5 marks)

The answer to this question mostly involves drawing of chemical structures and mechanistic arrows.The organic product is nitrobenzene, which students would draw out as part of the mechanism, but must also...

Answered by Erin B. • Chemistry tutor

2829 Views