Correct Answer: A. make a pointed remark

Explanation

(a)(i) In nuclear fission reaction results in splitting a heavy nucleus into two parts of nearly equal masses while in nuclear fusion process two light nuclei combine together to form a heavier nucleus.

(ii) Nuclear fission releases less energy per nuclear while nuclear fusion releases more energy per nuclear.

(iii) Nuclear fission can take place at room temperature while nuclear fusion takes place at very high temperature.

(ii) Peaceful uses of atomic energy are:

- Production of laser beams

- Production of x-rays

- Production of energy in discharge tubes.

(b)(i) The neutrons produced as a result of fission of a nucleus can cause further fission if they strike other nuclei. This rapid multiplication of a fission process by fissile neutrons is called chain reaction.

(ii) (i) Conditions necessary for chain reaction to occur are:

- The mass of fissile material must exceed the critical mass

- In addition to the two nuclei produced during the fission, one to three neutrons must be produced per parent nucleus.

(ii) Components in a nuclear reactor used to control chain reactions are;

- Boron steel

- Heavy water or denterium oxide

- Graphite or carbon rod.

(c)(i) The type of nuclear reaction is fusion.

T\(_{\frac{1}{2}} = \frac{0.693}{\lambda}\); \(\lambda = \frac{0.693}{T_{\frac{1}{2}}}\)

= \(\frac{0.693}{5.40 \times 10^{3}}\)

= 1.28 x 10\(^{-4}\)S\(^{-1}\)

Correct Answer: D. checks and balances

Explanation

The preparation for the visit of Henry Ford to the Assembly Plant exposes the evils of racial discrimination and particularly the oppressive nature of the apartheid system of government in South Africa. Mr. Henry Ford is to visit the plant in order to commission the expansion of the car plant. Baas Bradley is the foreman. He does all within his power to see to it that the preparations for the visit of the plant proprietor does not fail.

First, there is a notice for all the workers informing them of Fords's visit and the preparations to be made. The next thing is Baas Bradley's instruction that there be a general cleaning. Styles recalls that during the general cleaning, -iot water with brushes and electric mops are used to wash the floors first, then the thick oil and dirt under the machines are washed. In no time the place is spotless like you would have thought it had just been built.

The second stage of the preparation involves the painting and marking of safety precautions. This Styles says has not been done for the past five years. These safety precautions are marked in different colours of paint and translated into the native language of the black workers.

At the end of all the washing and painting, the workers are directed to have a hot shower so that they can look Jean and fresh. To do this, they are given soap and a towel each. The workers are clean to the point that they feel very embarrassed for being fresh because they are not used to it.

The next step in the preparation is the supply of new working tools to the workers. Styles observes that his tools needed replacement a year earlier but have not been replaced until now. New overalls are equally given to the workers to make them look as if they are always using new tools and overalls. Brand new fire proof aprons are also given :a them.

Armed with all these necessary tools, the workers are to get back to work, sing and pretend that they are sappy to be part of Mr. Ford's plant.

Styles is asked by Mr. Baas Bradley to translate these instructions to his fellow black workers. He mimicks Baas Bradley in a satirical manner and this adds to the humour of the play. Again, this further exposes the hypocrisy of the whites in South Africa. Through the translation too, the workers are told that the light will be slowed so that they can ,work and sing when Mr. Ford arrives. However, when the august visitor arrives, he does not even look at the plant nor the workers.

Correct Answer: C. the LORD would eventually smite Saul

Correct Answer: B) Selling to the final consumers

Explanation

Option A states that retailers operate as sole proprietors. This means that they are the sole owners and managers of their businesses. While many retailers do operate as sole proprietors, it is not a feature that is common to all retailers. Some retailers may operate as partnerships or corporations.

Option B states that retailers sell to the final consumers. This means that they sell products directly to individuals who will use or consume them. This is indeed a feature that is common to all retailers. Retailers are the final link in the supply chain, selling products to the end-users.

Option C states that retailers operate with small capital. While some retailers may start their businesses with small capital, it is not a feature that is common to all retailers. Retailers can operate with varying amounts of capital depending on the size and nature of their businesses.

Option D states that retailers sell on hire purchase to consumers. Hire purchase is a type of installment plan where consumers can buy products and pay for them in installments over time. While some retailers may offer this option, it is not a feature that is common to all retailers. Many retailers sell products for immediate payment.

Based on the options provided, the correct answer is Option B: Selling to the final consumers. This is a feature that is common to all retailers as they are the ones who directly sell products to individuals for their personal use or consumption.

Remember, it's important to understand the various features and characteristics of retailers as they play a crucial role in the distribution of goods and services to consumers.

Correct Answer: B. 5.0 x 10⁴N

Explanation

Thrust = \(\frac{\text{mass x velocity}}{time}\)

= 10 x 5 x 10³

= 5.0 x 10⁴N

Correct Answer: C. incidence of tse-tse flies

Explanation

There are many comic scenes in the play. One such scene occurs where Hlestakov has no money to pay for his accumulated bills in the inn, but still threatens the Landlord and the waiter for refusing his demand for more food and not being properly attended to by the inn keeper. When food is eventually served, though he has not paid a single Rouble for it, he still complains about its quality. The comic element in this scene emanates from the absurdity of Hlestakov's behaviour.

The scene where Bob and Dob attempt to report the arrival of the expected Government Inspector is equally comic. Both are at their comic best competing to announce the arrival. In their foolish eagerness they misrepresent Hlestakov as the expected Government Inspector, thus setting the stage for the action of the play.

Gogol also creates another comic scene when Yosif, thinking that the Landlord of the inn has reported them to the Mayor for their debts, quickly informs Hlestakov that the Mayor has come to arrest and put them in prison. Ironically, it is the Mayor who believes Hlestakov is the Government Inspector being expected from Petersburg and has come to meet him.

It is also funny and ridiculous that the Mayor should bribe Hlestakov with a loan of 400 Roubles fearing that he is the Government Inspector, while, in fact, Hlestakov is a spendrift and no Government Inspector.

Yet another comic scene is created where mother and daughter compete for Hlestakov's attention under the full glare of the Mayor. They dress to kill and fantasize about him and even quarrel about who is best qualified to woo him.

Also comic is the scene where the Mayor fantasizes about when his daughter Marya, would get married to Hiestakov. He boasts about it in the province and all the officials go to the Mayor's house with their wives to congratulate him on his soon becoming the father-in-law of the Government Inspector. The Mayor cuts a very ridiculous figure as he struts around, gloating on his own imagined position and importance.

The last scene in the play after the interception of Hlestakov's letter by the Postmaster is as comic as all the others. Here all the characters lick their wounds and count their losses as they confess their stupidity in allowing Hiestakov to dupe them.

Correct Answer: C. exuberance