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Describe the purpose of the moderator in a nuclear fission reactor.

The moderator material is generally graphite or water. These materials do not absorb or react with the neutrons, they simply act to slow down fast moving neutrons. If neutrons are moving too quickly they are...
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Answered by Samar K. • Physics tutor
9693 Views

Is Medea a victim or a villain in Euripides’ play?

Euripides presents the protagonist of his play in a way which inspires both fear and pathos. As a villain she represents the Ancient Greek fear of foreign women, with Medea’s brutal revenge and formidable ma...
EB
14880 Views

How should I structure an introduction and conclusion in an english essay?

Your introduction needs to briefly summarise the main points of your essay whilst catching the readers attention and making them interested in what it is you have to say. The first sentence should talk about...
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Answered by Zoe B. • English tutor
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There are 11 pens in a box, 8 are black, 3 are red. Two pens are taken out at random without replacement. What is the probability the pens are the same colour?

For the pens to be the same colour either two black pens need to be selected OR two red pens. So start with the probability of two black pens BB: On the first selection the probability of taking a black pen ...
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Answered by Georgia I. • Maths tutor
6719 Views

Translate into Russian : If I had studied more I would have passed my exams. Be sure to study hard or else you will fail like me

Если бы я учился больше, я бы сдал экзамены. Учись горячо, иначе провалишь зкзамены, как я!
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Answered by Esmee W. • Russian tutor
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