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What happens at a destructive plate margin as oceanic and continental plates converge?

When an oceanic and a continental plate move towards each other and collide, the oceanic crust is subducted into the upper mantle as it's much denser than continental crust. As the oceanic crust descends bel...
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Answered by Alicia W. • Geography tutor
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How can you determine the shape of water?

Water consists of two hydrogen atoms covalently bonded to an oxygen atom, the atoms oxygen has 6 outer shell electrons, and wach hydrogen donates one, this results in the structure having 8 electrons, meanin...
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Answered by JOSHUA M. • Chemistry tutor
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Explain what is meant by the term phenotype?

Expression of a genotype due to interaction with the environment
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Answered by Laura P. • Biology tutor
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Integrate dy/dx = 2x/(x^2-4)

Integrate dy/dx = 2x/(x 2 -4). We can answer this question using integration by substitution, where we set u = something in terms of x. In this case we are going to set u = x 2 -4 (the denominator). When we ...
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Answered by William R. • Maths tutor
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Find the first three terms in the binomial expansion of (8-9x)^(2/3) in ascending powers of x

Rewrite (8-9x)^(2/3) as (8(1-(9/8)x)^(2/3)=4(1-(9/8)x)^(2/3). Now apply the C4 binomial formula in the formula booklet, so: 4(1 - ((9/8)x)^(2/3)= 4[ 1 + (2/3)*((-9/8)x) + (2/3)((-9/8)x)^2 .....]= 4[ 1 - (3/4...
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Answered by Anthony R. • Maths tutor
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