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What is the Rutherford scattering experiment and what did it tell us about the nature of the atom?

The experiment involves firing alpha particles, positively charged helium nuclei made of two protons and two neutrons, at a thin layer of gold foil. There is a screen behind the gold foil which is used as a ...
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How can the idea of precondtioning as part of 'Thinking Ahead' benefit a programmer when writing code?

'Thinking Ahead' is one of 5 main aspects of Computational Thinking. It is the planning of inputs, ouputs and preconditions that the program will adhear to. By 'Thinking Ahead' programmers can discover how t...
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Answered by Nathan H. • Computing tutor
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What factors affect acidity in solution?

Approach this question in a logical manner breaking it down into constituent parts and then explaining these in turn. Give a defination for acidity i.e. pH: pH=-log10[H+] or pKa=-long10Ka The question is con...
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Answered by Theo R. • Chemistry tutor
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Consider the case for and against carrying out extensive market research[8].

Market research is the process of collecting, collating, and analyzing data on a market and the consumption of goods and services. Market research can be split into secondary research, which involves using d...
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What are collective responsibility and Individual Ministerial Responsibility? and how are they different?

Collective Responsibility applies to all Ministers and is designed to ensure government unity - all ministers have to follow cabinet decisions. Therefore, if a minister cannot abide by a cabinet decision the...
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