?? / ? = (?? - ?) ?? / ?
Since it is;
a) By mathematical analysis, show which Mach number the critical section will be.
b) In which nozzle does the critical section occur? Why? Explain by drawing a figure.
c) Which diffuser creates critical section? Why? Drawing a shape please explain.

this is a energy system homework of energy systems lecture from mechanical engineering thank you for efforts

Now consider the collision represented in the animation below. Let's assume that the two balls are sliding on a frictionless, horizontal surface. Do not assume that this collision is elastic (though it might be). Here's what's given:

The direction of +x is to the right.The blue ball has twice the mass of the red. Let's make them mb = 2 kg and mr = 1 kg.

The red ball is initially stationary.

The initial velocity of the blue ball, vbi, is 6 m/s, and its final velocity, vbf, is 2 m/s.

1)Find the final velocity, vrf, of the red ball, in meters per second. Enter only a single number (without units) before submitting. If your answer isn't an integer, you've made a mistake somewhere ! 2)The principle that I used to get the answer to the previous question was conservation of ... 3)

the initial KE of the system (both balls) in this problem is: (give answer and show/explain how you got it) 4)

The final KE of the system (both balls) in this problem is: (give answer and show/explain how you got it) 5) was the collision elastic?

Research and explore what is Artificial intelligence (AI) and Blockchain. Critically analyse how are they currently used in accounting and what is their potential future in the field.

Based on the article and additional research, discuss in detail in a real life scenario how AI and Blockchain can be used to advance the work of an accountant or an accounting function within an organisation.

Critically evaluate any arguments made by the author Daniel Hood in the reference article above. Do you agree or disagree? Explain your point of view and provide evidence in support of your point of view

1. A friend consults you regarding the effectiveness of taking garlic as a cure for his common cold. You discourage him from taking your own personal opinion on this matter and you advise him instead to look at the wealth of research performed in the past in this area. What are three different levels of research resources (above conventional wisdom) based on the different ways that research is conducted or aggregated in order to find an evidence-based solution to your friend’s problem? Explain in detail what is contained in each resource type.

The nurse is teaching a client about wound care in preparation for discahrge. How should the nurse evaluate the effectivenes of homecare teaching on wound care? Select all that apply.

a. Give a paper and pencil quiz

b. Have the caregiver or client demonstrate the procedure

c. Have the client or caregiver explain the procedure

d. Have the client or caregiver critique a video on the procedure

e. Ask the client detail questions while demonstrating the procedure

After reading page 704 to 707 from the file “Chapter 17- Rittenberg” (available in BB):

a/ Explain in detail the differences between monetarist view and Keynesian view about the functioning of the economy and the role of economic policy ( you discuss both fiscal and monetary policy).

b/ According to Milton Friedman, how did the US economy end up by exhibiting high inflation rate and high unemployment rate early 70s ?

Jordan Corp is a US manufacturer of auto parts with branch operations in France.  On December 31, 2018 wishes to use a foreign currency option to hedge a 10,000,000 euro denominated accounts receivable that is due in two years.  Jordan plans to use fair value hedge accounting. Over the subsequent 4 quarters the following are the changes in the fair value of the receivable and the foreign currency option hedge.

 Quarter ended March 31, 2019:   Euro receivable increases by $ 400,000

                                                     Option hedge declines by $350,000

Quarter ended June 30, 2019:      Euro receivable decreases by $500,000

                                                     Option hedge increases by $ 400,000

Quarter ended Sept. 30, 2019:      Euro receivable decreases by $800,000

                                                      Option hedge increases by $700,000

Quarter ended Dec. 31, 2019:       Euro receivable increases by $ 200,000

                                                      Option hedge decreases by $ 100,000

 Answer the following questions:

1. . Structure the appropriate fair value hedge using an FX option.  Your answer must state whether Jordan is purchasing or selling an option, what is the expiration date of the option as well as whether it is an option to purchase euros and sell US dollars or an option to purchase US dollars and sell euros. (3 points).  

2. . Identify by codification reference, e.g., xxx-xx-xx-xx, and attach AND HIGHLIGHT the appropriate section(s) of the FASB codification that describe the alternate criteria that can be used to determine at December 31, 2019 whether or not this has been an effective fair value hedge  (3 points ).

3. Using one of the alternate criteria in your answer to #2 above, state your conclusion as to whether this is an effective hedge, meeting the FASB criteria.  You must include a computation to support your conclusion.  (4 points ).

Sneaker 2013 case study

1. Summarize the problem and discuss the decision faced by the firm
2. Assuming the following cashflows

Find Payback period, discounted payback period, NPV, PI, and IRR

4. What is your final recommendation? Explain in detail.