Explanation

(a) — The sum of clockwise moments about any point is equal to the sum of anticlockwise moments about the same point

— The sum of the forces in one recticn is equal to the sum of the forces in the opposite direction.

b)

Method: Suspend the metre rule on a thread loop from clamp. Adjust its position until the metre rule balances horizontally and obtain its centre of gravity G. Suspend known mass M at a point on one side of the rule and just the position of the loop until the rule balances horizontally. Read and record the distances y and x in the diagram above. sing the principle of moments Mgx = Mgy

m = \(\frac{My}{x}\)

Therefore the mass M of the metre rule is calculated.

ii) Precautions:

— Firmly fixed the loop

— Avoid draught

— Avoid parallax when reading metre rule.

.

c)(i) Declaration a = \(\frac{v - u}{t} = \frac{0 — 20}{0.1} = — 200m/s^2\)

Resistance F = Ma = 0.12 x 200 = 24N

ii) Distance S = \(\frac{v^2 - u^2}{2a} = \frac{0^2 - 20^0}{2 \times 200}\)

= \(\frac{400}{400} = 1.0m\)

Correct Answer: B. wisdom

Correct Answer: A. They are formed by two identical waves travelling in opposite directions

Explanation

The society which Bolt presents is a morally decadent one in which the values normally associated with civilized society are destroyed. It is a cynical world in which 'every man has his price.' The king, who is the head of state, unsurps the power of the church because he now finds it convenient to do so. His lack of morals is clearly demonstrated in his desire to sacrifice correct behaviour on the altar of expediency.

The very dispensation which he persuades the Pope to give to allow him to marry his late brother's wife, he now tries to get the Pope to reverse, so that he can divorce his wife and marry another. When the Pope will not co-operate, he seeks through 'legal means, to strip him of all his power. Rather than serve as the fountain of honour and justice, the king perverts justice and debases honour. He is assertive and corrupt, determined to achieve his aims by any means possible. He does not find it difficult to garner support for his scheme because of the moral bankruptcy of the society. One of his most ardent supporters is Thomas Cromwell, an opportunist and an instrument of the King. He, like the King, will ignore all the niceties of conscience to achieve what he desires. The king also gets support from other officials whose primary aim is to keep themselves in comfortable positions. Richard Rich is one such character.

His lack of remorse after he has betrayed More points to the level to which society has degenerated. This is why More's sterling qualities radiate in the play. Social institutions also come in for scathing criticism in the play. The church is censured for allowing itself to be manipulated by the King. And the trial of More exposes the perversion of justice which has become characteristic of the judiciary. The ordinary people too, do not escape Bolt's censure. The woman who gives a "gift" to More in the form of a silver cup is a good example. We see therefore that corruption has become a way of life in the society and that values have been perverted.

Correct Answer: D. Calcium

Explanation

Agricultural productivity is low in my country, Nigeria for the following reasons:

(i) The use of crude implements does not allow for increase in output.

(ii) Land tenure and land fragmentation makes availability of land for farming cumbersome.

(iii) Inadequate credit facilities to farmers makes commercial or large scale farming difficult.

(iv) There is the problem of inadequate infrastructural facilities for storage and transportation e.g. feeder roads.

(v) Inadequate attention is paid to research and extension services.

(vi) The weather/climate sometimes reduces the level of output, e.g. during periods of low rainfall.

(vii)There is the problem of poor agricultural pricing policy. Unstable prices affect the morale of farmers to increase output.

(viii) The destructive activities of pests and grazing animals destroy farmlands and lower productivity.

(ix) Agriculture is prone to natural disasters and this always affects productivity.

(x) Political/social instability in the country affects agricultural activities as farmlands are usu-ally destroyed during communal clashes. This leads to low agricultural productivity.

Correct Answer: A. the rotation of power among different regions

Explanation

The zoning system in Nigerian politics refers to the rotation of power among different regions. This is a political arrangement to ensure that political power is not monopolized by a particular region, but is rotated among different regions in the country.

Correct Answer: B. 6660km

Correct Answer: B. the law and the prophets

Correct Answer: B. act in my absence