17772 questions

How important were the developments in free-standing Greek sculpture from 600 to 480 BC? (30 marks)

The question refers to the sculptures bridging the gap between the archaic and classical periods. The key to this question is to bring in examples of both male and female free-standing sculpture fitting the description in the question, and explain carefully their developments and why they are important. Examples could be the New York kouros, the Berlin kore, the Anavyssos kouros, the Peplos kore, the Tyrannicides and the Kritian Boy. A 'how important' question is quite vague so it would be important to outline what that actually means. In this case, it is important because developments in sculpture from 600 to 480 BC become more and more naturalistic and realistic before the so-called 'turning point' of 480 BC. The answer to the question should identify this, then describe and outline the developments in detail. (e.g. One example of a development is the increased realism in poses. This can be seen in the Kritian boy statue with the introduction of the 'contrapposto' position. The weight is on one leg and the other leg is relaxed. One shoulder is therefore slightly lower and the whole body is balanced and counter-posed. This moves away from the rigid stances of the New York kouros and the Peplos kore. etc.) Then it would be good to explain their importance in the progress and development of Greek sculpture. The question has also given specific dates so it would be good to explain that 480 BC is when sculpture changed and where the classical style began. This was due in part to the influence of the Persian wars and the destruction of the Acropolis. This kind of extra knowledge surrounding the question shows the examiner that you really understand the period, the sculpture and the historical influences. The essay should be finished with a strong conclusion which rounds off the argument and which refers back to, and answers the question. e.g In conclusion, the developments in free-standing Greek sculpture from 600 to 480 BC were vital for the increase in realism which leads into the classical period and which conforms to the Greek ideal of 'kalos kagathos'.
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Katya J.

Answered by Katya, Classical Civilisation tutor with MyTutor

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Solve: 4(3x − 2) = 2x - 5

The question is asking us to find the value of x. First, we need to multiply the brackets out. To do this, multiply everything in the bracket by 4 so 4*3x=12x and 4*-2=-8 this gives the equation 12x - 8 = 2x - 5. Now we need to rearrange the equation so the x's are on one side and a number on the other side. To do this, we do 12x - 2x = 10x on the left hand side and on the right hand side, -5 + 8 = 3. This gives the equation 10x = 3. The question ask us to find x so we divide 3/10 so x=3/10 or 0.3.
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Ellecia S.

Answered by Ellecia, Maths tutor with MyTutor

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Find an equation for the straight line AB , giving your answer in the form px+qy=r, where p, q and r are integers. Given that A has co-ordinates (-2,4) and B has co-ordinates (8,-6)

We know 2 equations for a straight line; Y=MX+C and Y-B=M(X-A). Since we do not have the y intercept (C) or any means of finding it but we do have 2 points on the straight line, it would make sense to use the equation Y -B=M(X-A). Firstly, we need to find the gradient (M), to do this we use the equation M= y1-y2/x1-x2. Let A have x1 (-2)and y1 (4) and B have x2(8) and y2(-6). By subbing these into the gradient equation we get M= 4- (-6) / (-2) -8 which gives us M= 10 / -10, this simplifies to M=-1 ( if the student doesn't understand how the gradient is reached from this equation I would explain it to them here). Next we need to sub the gradient along with 1 of our co-ordinates, lets take A where -2 is A and 4 is B, and then substitute both into our line equation. This gives us : Y- 4 = -1(X- (-2)), the X-(-2) would turn into: X+2, then if we multiply the out the brackets on right hand side we get Y-4 = -X-2. We want the equation in the form pX+ qY=r so we need to put X and Y on one side and the constant on the other. If we move -X to the left and -4 to the right we get: X+Y=-2+4. To finish we just add the numbers to get: X+Y=2, our answer.
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Samantha C.

Answered by Samantha, who has applied to tutor Maths with MyTutor

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What are two potential macroeconomic effects of a rise in interest rate? (8)

Firstly, a rise in interest rate could negatively impact investment within an economy. This is because the interest rate would increase the cost of borrowing and thus deter firms from taking out loans to finance/subsidise various R & D initiatives within the company. This fall in investment would result in a fall in aggregate demand and potentially deflationary pressures which have many worrying consequences.
In addition, increased interest rates may result in 'hot-money inflows' for the economy due to an increased return on savings. Whilst this provides banks and other financial institutions with greater liquidity it also results in the appreciation of the exchange rate due to greater demand for it. This can lead to reduced international competitiveness which inevitably worsens to the given country's current account. An example of country which possesses a trade deficit is the UK which is a net importer of goods.
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Rhys E.

Answered by Rhys, Economics tutor with MyTutor

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Describe how the small intestine is adapted for efficient glucose absorption. (3 marks)

The small intestine has a very large surface area to increase the amount of area that glucose can diffuse out of the small intestine into the bloodstream. The large surface area is created by villi, which are thousands of small, finger-like projections on the inside surface of the small intestine. Each one is only one cell thick, which means the area over which the glucose has to diffuse is very thin, so it can happen more quickly. The villi also each have a network of capillaries surrounding them so the glucose is quickly taken away once it diffuses out of the small intestine. This helps to maintain a steep concentration gradient of glucose between the small intestine and the blood around it, so diffusion happens more quickly.
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Morgan H.

Answered by Morgan, who has applied to tutor Biology with MyTutor

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Why does propanol have a higher boiling point than propanone, propanal or methyl ethanoate?

Molecules of propanol have a hydrogen directly bonded to a NOF atom (oxygen in this case), which means that they can hydrogen bond with eachother. The oxygen in the other three molecules is only bonded to a carbon atom so hydrogen bonding is not possible. All the molecules have Van der Waals forces between them but propanol has the addition of having hydrogen bonding, which is slightly stronger. The stronger forces between molecules means that more energy is required to break apart the molecules and therefore the substance has a higher boiling point. Remember boiling point is the temperature that corresponds to the energy required to break the intermolecular forces of attraction.
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Katharine W.

Answered by Katharine, Chemistry tutor with MyTutor

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How revolutionary was the 1905 revolution in Russia

The 1905 revolution was period of unrest in Russia characterised by mass strikes and mutinies; it has often been described as a precursor to the revolution of 1917. For a revolution to have taken place, many historians would expect there to have been a ‘forcible overthrow of the government or existing social order’; yet by the end of 1905, autocracy still stood firm in Russia, spearheaded by the ever dictatorial Tsar. By this metric, therefore, it would seem impossible to maintain that the events of 1905 constituted a revolution. This conclusion, however, misses a nuanced, subtle, and important upshots of 1905; if we take revolution to mean ‘a dramatic and wide-reaching change in conditions, attitudes, or operation’, then the debate becomes far more interesting and . Whilst it may be argued that the aims and intentions of those involved in the 1905 revolution were far from revolutionary, and in terms of material conditions 1905 effected little change, however the public psyche, expectations, and attitudes towards government in Russia changed as a result of 1905; in this way there was a revolution.
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Louis V.

Answered by Louis, History tutor with MyTutor

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What is an infinitive verb?

An infinitive verb is essentially just the simplest form that a verb can be.It doesn't specify anything to do with who is completing the action; just the action itself.
For example, in English we have infinitive verbs such as:To JumpTo Speak To DrinkIn Spanish, these would be:SaltarHablarBeber
*Remember! All infinitive verbs in Spanish will end in either -AR, -ER, or -IR
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Moira T.

Answered by Moira, Spanish tutor with MyTutor

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