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How do I prepare for an exam with an unseen text?

I found this difficult at first, especially coming from GCSE where the book was there for you to constantly refer to. However, I found that the best way for me to remember quotations, was for me to relate th...
FN
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A pot of water is heated to 100C and then placed in a room at a temperature of 18C. After 5 minutes, the pan temperature falls by 20C. Find the temperature after 10minutes.

(The rate at which the temperature of a body falls is proportional to the difference between the body temperature and the room temperature) - this would be given in the question. This is a typical ordinary d...
AC
Answered by Asher C. • Maths tutor
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What is the most efficient way of structuring a history GSCE or an A-level essay question?

The most common question asked by all History students are to do with the way in which they are expected to structure an essay and how to stick to the question asked. It is so easy to lose out on marks just ...
AG
Answered by Aldona G. • History tutor
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How can I find out the Young's modulus of a material?

Right, so the Young's modulus of a material is a measure of it's rigidity. The higher the value of the Young's modulus, the more rigid the material is.Ok, so the Young's modulus, E, is equal to the stress th...
WS
Answered by William S. • Physics tutor
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Two identical uniform spheres each of radius R are placed in contact. The gravitational force between them is F. They are then separated until the force between them is one ninth of the magnitude. What is the distance between the surfaces of the spheres?

With electostatics, it is important to remember that inthe equation giving the force between two point charges, the force is inversely proportional to the square of the distance of the charges. It is importa...
MS
Answered by Mrinank S. • Physics tutor
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