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How do I do definite integrals?

A definite integral is an indefinite integral with set limits. If we consider integration as a way of calculating the area under a curve, a definite integral calculates the area under the curve between two p...
CJ
Answered by Charlie J. • Maths tutor
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How does a signal move from one neurone to another and how does this process change for different motor responses?

The transmission of an action potential- the signal- from one neurone to another occurs over the synapse. The structure of a synapse is as follows; there is a presynaptic bulb, a post synaptic bulb and the s...
AH
Answered by Amy H. • Biology tutor
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i)Explain why first ionisation energy shows a general tendency to increase across a period? ii)Using period 3 as an example, which elements show irregularities in this trend and why?

i)As you move across a period the number of protons in the nucleus, and so the overall nuclear charge, increases. All extra electrons are roughly the same energy and distance from the nucleus. This means the...
DM
Answered by David M. • Chemistry tutor
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To what extent should the period of Conservative dominance between 1951 and 1964 be viewed as "Thirteen Wasted Years"?

This first thing to do when answering an essay question is to read and analyse the question, and to understand what it is that the examiner is asking and looking for. It is helpful to break down the title in...
AM
Answered by Annabel M. • History tutor
5425 Views

How do I write an A* grade essay?

The key to writing a successful essay at A-level & GCSE is to always have the Assessment Objectives in your head (it might even help to write them down as part of your plan). It is a common complaint tha...
JT
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