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How can I figure out the key of a piece?

When we discuss KEYS in music we must always look at one thing: the KEY signature. This is the bit on the first line, next to the clef (Treble, Bass, Alto or Soprano). You'll notice this as it will have Shar...
SC
Answered by Shaun C. • Music tutor
4004 Views

Experiment results show that butane has a higher boiling point than propane, explain why.

When simple molecular substances such as a hydrocrabons are boiled, the intermolecular forces between the molecules are broken down. Heat energy is required to break down these forces. Butane is larger than ...
RK
Answered by Ryan K. • Chemistry tutor
23389 Views

What is the difference between 聞く and 聴く?

Sometimes in Japanese, there are characters that basically mean the same thing, and have the same reading, but are used in different contexts. 聞く （きく） means to hear, or ask, and is used for daily situations....
EM
Answered by Emily M. • Japanese tutor
3156 Views

What is a "concrete noun"?

A Concrete Noun is a word that signifies something that can be seen, heard and touched in the real world. For example; table, lamp, desk, and pen, are all concrete nouns. However in contrast to this, there i...
EM
12282 Views

Let y = 4t/(t^2 + 5). Find dy/dt, writing your answer in it's simplest form, and find all values of t for which dy/dt = 0

We use the quotient rule to find dy/dt. Let u = 4t and v = (t^2 + 5). Then, u' = 4 and v' = 2t. Hence, dy/dt = u'v - v'u / v 2 = 4(t^2 + 5) - 4t x 2t / (t^2 + 5) 2 = 20 - 4t 2 / (t^2 + 5) 2 . Now, we need to...
JH
Answered by Jonathan H. • Maths tutor
4497 Views