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How is nature presented in Shakespeare’s ‘Macbeth’?

Think about the natural landscapes we see in 'Macbeth'. How do the witches make their spells? Is there a particular significance to the ingredients? It might be a good idea to introduce your essay by talk...

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Answered by Emily D. English tutor
3293 Views

Can you please explain the significance of photoelectric effect?

The photoelectric effect is the emission/removal of electrons, normally, from the surface of a metal. This is done as light is shone on the metal. This is a very useful proof that light can act as a parti...

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Answered by Khawaja A. Physics tutor
4816 Views

If x^2 + y^2 = 20 and y=10 - 2x, find x and y.

First work out y2 using the second equation, making sure to do this using the FOIL technique. Then substitute this into the first equation to get 5x2 - 40x - 80 = 0. All the terms in...

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Answered by Sara T. Maths tutor
8096 Views

Draw a graph on the effect of an increase in temperature on the rate of an enzyme controlled reaction. Explain the shape of the curve and suggest why the temperature of a mammal is maintained just below the optimum temperature.

As kinetic energy increases, enzyme and substrate molecules collide with more frequency allowing more enzyme substrate complexes to be formed. With increasing temperature, the tertiary structure of the pr...

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Answered by Sadia Z. Biology tutor
6279 Views

How can I efficiently plan an essay in an exam?

It is always helpful to plan your essay before you begin. Planning is essential to have a clear, confident argument. Once you have selected your question, loosely annotate it - underlining key words (like...

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Answered by Emily D. English tutor
1655 Views

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