Answer / Explanation:
Kindly note that the question is incomplete. However, kindly find the complete question below and the answer.
Complete Question
Water is flowing in a trapezoidal channel at a rate of Q=20m³/s . The critical depth y for such a channel must satisfy the equation:
0 = 1 − Q² / gA³c . B Where g= 9.81m /s² and Ac = the cross-section area can be related to depth y by B = 3+y and Ac = 3y+y²/2. Solve for the critical depth using (a). the graphical method,
Answer:
Given the equation,
0 = 1 − Q² / gA³c. B
Now substituting the given value g= 9.81m /s² , Q =20m³/s, B = 3+y, and Ac = 3y+y²/2,
We get:
0 = 1 - 20² / (9.81) ( 3y + y²/2)³ (3+y)
Hence we choose f(y) = 1 - 40.7747 / (3y + y²/2)³ . (3 + y) and solve for f(y) = 0
Therefore,
To solve using a graph, we take twelve sample points ( starting at y = 0.25 in step of 0.25m and plot a graph using MS- Excel. Kindly find the graph below.
2) As evident from the sample point and the graph function f(y) gets close to zero at y = 1.5, hence the root of f(y) = 0 is Xr = 1.5
Answer:
It occur where MR = MC
Explanation:
Perfectly competitive organization or firm is the one who is price taker, which states that they must accept the price at which it sells the goods to consumer.
In a firm that is a perfectly competitive, the level of output as well as the price happen where the Marginal Cost is equal to the Marginal Revenue.
It is stated as MR = MC.
Answer:
D and B
Explanation:
Rational expectation will include the present as well as the past trend to build the future expectations. So, presence of unexpected expansionary policy, will make them build expectations of the future. But, adaptive expectations relies on the past information. It means that inflation actually happened, when make people to adapt the future expectation.
Answer:
The correct answer is (A)
Explanation:
The three most effective and recognised consumer problem-solving methods are extended problem solving, limited problem solving, and routine response behaviour. Extended problem and limited problem-solving methods help to identify the best products and provide information to the customer regarding a product and a brand. Meanwhile, routine problem response behaviour helps to choose products and services which are common and require little decision-making effort.
