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How do you start to harmonise a Bach Chorale

There are of course many ways to begin to harmonise a Bach Chorale; I would advise identifying the key of the soprano line, by looking at the key signature and the accidentals (sharpened sevenths of the mino...
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Answered by Laurence T. • Music tutor
5449 Views

Are monopolies more efficient than firms under perfect competition?

Monopolies are the sole suppliers in a market, who are price makers, can create barriers to entry, create a unique product, and face a downward sloping demand curve. Under perfect competition, there are many...
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Answered by Alex K. • Economics tutor
5142 Views

‘Writers are at their best when they acknowledge that relationships can have both positive and negative elements.’ How far do you agree?

The presentation of arguments within relationships is a significant example of writers acknowledging that relationships can have both positive and negative elements. There is a focus on the negative, the arg...
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Answered by Imogen S. • English tutor
2349 Views

Differentiate y = (x^2 + 1)^1/3

Use the chain rule to do this. First set u= x^2 + 1. We chose u to be this because u 1/3 is much simpler to differentiate. Then find du/dx = 2x. Now find dy/du = 1/3 * u -2/3 = 1/3 * (x 2 +1) -2/3 . Now by t...
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Answered by Will W. • Maths tutor
3914 Views

Explain how an action potential is transmitted across a cholinergic synapse.

The action potential arrives at the synaptic knob of the presynaptic neurone. The action potential stimulates the opening of voltage-gated calcium ion channels in the presynaptic neurone, allowing calcium io...
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Answered by Kathryn E. • Biology tutor
3260 Views