Correct Answer: D. 16/9

Explanation

P ? 1/w²; P = K/W²

9 = K/4²; 9 = K/16

K = 9 x 16 = 144

P = K/W²; when w = 9

P = 144/9² = 144/81 = 16/9

Correct Answer: D. government revenue and expenditure to regulate an economy

Explanation

Fiscal policy is the use of government income and expenditure instrument to regulate or control the economy. It is used to control inflation, deflation, balance of payments deficits, economic recession, unemployment, price level, GNP etc. The two most important fiscal policy tools of government are: Government expenditure and Taxation

Correct Answer: A. \(\frac{\sqrt{2}}{5}\)

Explanation

\(F = F_{1} + F_{2}\)

\((2i - 5j) + (-3i + 4j) = (-i - j)\)

\(F = ma \implies (-1, -1) = 5a\)

\(a = (-\frac{1}{5}, -\frac{1}{5})\)

\(|a| = \sqrt{(\frac{-1}{5})^2 + (\frac{-1}{5})^2} = \sqrt{2}{25}\)

\(|a| = \frac{\sqrt{2}}{5} ms^{-2}\)

Explanation

Eight maintenance practices and precautions which can be taken to keep a tractor operating safely and ensure durability after use are:-

(i) Inspect the tractor before starting everyday. It helps to spot potential machine failures and safety hazards.

(ii)Ensure that nuts and screws or metal parts are tight. Loose nuts, screws and metal parts may cause vibration and produce irritating noise and in some cases may cause machine failure.

(iii) Keep the machine clean by removing all thrash or mud and excess grease/oil from machine at the start or at the end of operation.

(iv) Do not overload the tractor i.e. operate at appropriate speed for field operations and avoid using it under conditions that are unfavourable.

(v) Employ a skilled or competent and experienced tractor operator.

(vi) Carry out routine services by changing filters and oil when due.

(vii) Check water and oil levels regularly to ensure that they are normal and to prevent any overheating or seizure of engine.

(viii) Check tyre pressures and replace flat or worn-out tyres.

Correct Answer: B. of the grace of God that was with him

Correct Answer: A. accompany

Correct Answer: B) price discrimination

Explanation

The question is asking about a pricing behavior that a firm can use for a good or service. The behavior is where the firm charges different prices to different consumers for the same good or service. This behavior is known as price discrimination, which is the correct answer (Option B).

Price discrimination occurs when a firm charges different prices for the same good or service based on the different levels of demand and willingness to pay of different consumers. The firm can do this by offering different prices to different market segments, based on factors such as age, income, location, or time of purchase.

Price discrimination can be beneficial for firms as it allows them to increase their profits by capturing more consumer surplus. However, it can also be seen as unfair to consumers who are charged higher prices for the same good or service as others.

The other options listed are not correct. Uniform pricing behavior (Option A) is the opposite of price discrimination, where a firm charges the same price to all consumers. Market separability (Option C) is when a firm can identify different markets for its product and charge different prices in each market. Price differentiation (Option D) is a broader term that can refer to any strategy where a firm offers different versions of a product at different prices or charges different prices based on factors such as quantity or timing.

In conclusion, the correct answer to this question is Option B: price discrimination. It is a pricing behavior where a firm charges different prices to different consumers for the same good or service based on factors such as demand and willingness to pay.

Correct Answer: D. to allow adequate time for exchange of materials

Correct Answer: A. liver

Correct Answer: B. I and IV only