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This is something that many students struggle with but luckily it is simpler than it seems and once you know it, you know it! I like to use an example that I can refer back to if I get confused: Estaba le...

This question is to do with the refraction that occurs when a light ray hits a boundary between two media of different refractive index. We know that the relationship between the angle of incidence and an...

4x +7 = 13 4x = 6 x=6/4 x=3/2

Cystic Fibrosis is a recessive disease, therefore for Sally to have the condition she must have a homozygous recessive genotype, with one recessive allele of the gene from the mother and one from the fath...

Conventions are one of the sources of the UK constitution. They are effectively unwritten rules which regulate the conduct of government. An example is the Salisbury Convention, under which the House of L...