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When the question asks what 'harmonic device' is being used, what does it mean?

You could think of a 'harmonic device' as a 'harmonic technique' e.g. circle of fifths or chromaticism. When a question is asking what harmonic device is being used it is likely to be very obvious e.g a chai...
OT
Answered by Oonagh T. • Music tutor
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Given that the graph f(x) passes through the point (2,3) and that f'(x)=6x^2-14x+3, find f(x).

For this question we already have the derivative of f(x), and so if we integrate it we should get to a general equation with a constant on the end, however we want to get to an exact solution which we should...
Answered by • Maths tutor
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Find the surface area of a hand held fan (modeled with negligible depth) with radius 8 cm and a 60 degree angle at the centre

60 degrees = π/3 radians A = 1/2r 2 θr = 8θ = π/3 1/2 x 8 2 x π/3 = 33.5103216... cm 2 33.5103216... x 2 = 67.0 cm 2 to 3 s.f.
Answered by • Maths tutor
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A tall 2 meter tall basketball player shoots for the net that stands 3 meters from the ground. If he throws he ball from head height at an angle of 60 degrees and the ball travels at 10 meters per second, how far away is the hoop?

By taking the initial vertical speed as v v = 6 sin(60) = 5.2 ms -1 .The max height of the ball is given by v v 2 = u v 2 + 2as. From this, s = 1.4m.Knowing the hieght, we can find the time that the ball spe...
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Answered by Honi G. • Physics tutor
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"A potential site for social disruption... a medium for the message of disent." Discuss with reference to Shakespeare's 'Twelfth Night'

IntroWriting in the Elizabethan period, Shakespeare explores several 'site[s] for social disruption' in his play 'Twelfth Night', written in 1602. These include the rigid social hierarchy, the constraining g...
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