A high carbon steel shaft is used in an engine and subjected to different loads. In order to analyse the stress in the shaft, consider a rectangular element within the material. This element is subjected to compressive stress of 135 MPa and shear stress of 166MPa in the vertical direction. The compressive stress in the horizontal direction is 176MPa with a shear stress of 115MPa.

d. What will be the difference in the analysis above if there is an additional torsional load (T) and bending moment (M).
e. Show how you can use any theory of failure to design this shaft.
f. What are the challenges of applying the theories of failure in actual engineering practice and as a design engineer, how would you deal with these challenges.

a. Sketch the state of stress on this element.
b. Determine the maximum and minimum normal and shear stresses and their plane of orientation.
c. If the yield strength of the material is 350MPa, Poison’s ratio is 0.32, and factor of safety is 5, determine the diameter of the shaft to avoid failure.

This task is solved in Python 3.

Develop a program that lets the user add new people to the file phone.txt

Add name and number, end with <enter>

Name and number: Robin 94567402

Name and number: Jessica 99468283

Name and number:

>>>

15.In a limited liability partnership (LLP)

a.a partner may avoid liability for the malpractice of other partners.

b.a partner who commits malpractice is automatically expelled from the partnership under the UPA.

c.the maximum number of partners is limited by the law of most states.

d.it is deemed unethical to employ non-professionals.

17.A limited liability company

a.is presumed to be member managed.

b.is presumed to be manager managed.

c.may not have members who are foreign nationals under federal law.

d.can have a duration of no more than 25 years under the law of most states.

19.A syndicate

a.cannot be incorporated under the law of most states.

b.is a type of criminal(organized crime) organization.

c.is an investment group formed to finance a particular project.

d.is an income tax avoidance device.

A small business owner visits his bank to ask for a loan. The owner states that he can repay a loan at $2,200 per month for the next three years and then $1,200 per month for two years after that. If the bank is charging customers 10.25 percent APR, how much would it be willing to lend the business owner? (Do not round intermediate calculations and round your final answer to 2 decimal places.) What is the present value?

The equation A = Ao * e^(-t(log2/h)) is used to model the decay of radioactive materials. Where A is the amount of material at time t, A₀ is the amount at time 0 and h is the half-life.

Write a program that prompts for a decay time and how long of an interval you want to look at. Then write the code that creates a table with the appropriate information.

For example, the decay rate is 6 months for material xyz. What does it look like over 30 hours?

Why is substitution of a Pro amino acid in the middle of an alpha-helix always disruptive?

STEPHENSON REAL ESTATE RECAPITALIZATION Stephenson Real Estate Company was founded 25 years ago by the current CEO, Robert Stephenson. The company purchases real estate, including land and buildings, and rents the property to tenants. The company has shown a profit every year for the past 18 years, and the shareholders are satisfied with the company’s management. Prior to founding Stephenson Real Estate, Robert was the founder and CEO of a failed alpaca farming operation. The resulting bankruptcy made him extremely averse to debt financing. As a result, the company is entirely equity financed, with 8 million shares of common stock outstanding. The stock currently trades at $37.80 per share. Stephenson is evaluating a plan to purchase a huge tract of land in the southeastern United States for $85 million. The land will subsequently be leased to tenant farmers. This purchase is expected to increase Stephenson’s annual pretax earnings by $14.125 million in perpetuity. Jennifer Weyand, the company’s new CFO, has been put in charge of the project. Jennifer has determined that the company’s current cost of capital is 10.2 percent. She feels that the company would be more valuable if it included debt in its capital structure, so she is evaluating whether the company should issue debt to entirely finance the project. Based on some conversations with investment banks, she thinks that the company can issue bonds at par value with a 6 percent coupon rate. From her analysis, she also believes that a capital structure in the range of 70 percent equity/30 percent debt would be optimal. If the company goes beyond 30 percent debt, its bonds would carry a lower rating and a much higher coupon because the possibility of financial distress and the associated costs would rise sharply. Stephenson has a 23 percent corporate tax rate (state and federal).

1. If Stephenson wishes to maximize its total market value, would you recommend that it issue debt or equity to finance the land purchase? Explain.

2. Suppose Stephenson decides to issue debt to finance the purchase. What will the market value of the Stephenson Real Estate Company be if the purchase is financed with debt?

3. What is the price per share of the firm’s stock? (Hint: Stock price per share = Total equity / # of outstanding shares)

The desired daily output for an assembly line is 300 units. This assembly line will operate 425 minutes per day. The following table contains information on this product's task times and precedence relationships: TASK TASK TIME (SECONDS) IMMEDIATE PREDECESSOR A 35 — B 40 A C 35 A D 40 B E 15 C F 75 C G 45 E-F H 30 D-G Balance this line using the largest number of following tasks. Use the longest task time as a secondary criterion. (Leave no cells blank - be certain to enter "0" wherever required.)

Consider the titration of 50.0 mL of 0.20 M  NH3 (Kb=1.8×10−5) with 0.20 M  HNO3. Calculate the pH after addition of 50.0 mL of the titrant.

X-Treme vitamin company is considering two investments,both of which cost$20000.The Firm's cost of capital is 15 percent.The cash flows are as follows.

Instructions:

I. What is the payback period for each project?    Which project would you accept based on the payback period?

II.What is the discounted payback period for each project?   which project would you accept on the discounted payback criterion?

III. Calculate The NPV of each Project?     Which project would you choose based on NPV criterion ?

IV.Based on the IRR criteria which project would you choose if they were mutually exclusive?

The desired daily output for an assembly line is 300 units. This assembly line will operate 425 minutes per day. The following table contains information on this product's task times and precedence relationships: TASK TASK TIME (SECONDS) IMMEDIATE PREDECESSOR A 35 — B 40 A C 35 A D 40 B E 15 C F 75 C G 45 E-F H 30 D-G What is the efficiency of your line balance, assuming it is running at the cycle time in part b? In percentage

Manufacturing facilities may experience production delays due to unexpected natural events, such as fires, or anticipated, but ignored, defects or human-made problems. What are three (3) to five (5) contract clauses and/or negotiated business terms that you would want to include as the purchaser of manufactured items critical to your company's success to avoid or mitigate risks associated with production interruptions.

Your company has been approached to bid on a contract to sell 5,200 voice recognition (VR) computer keyboards a year for four years. Due to technological improvements, beyond that time they will be outdated and no sales will be possible. The equipment necessary for the production will cost $3.9 million and will be depreciated on a straight-line basis to a zero salvage value. Production will require an investment in net working capital of $435,000 to be returned at the end of the project, and the equipment can be sold for $385,000 at the end of production. Fixed costs are $610,000 per year, and variable costs are $83 per unit. In addition to the contract, you feel your company can sell 13,000, 15,100, 18,700, and 11,200 additional units to companies in other countries over the next four years, respectively, at a price of $189. This price is fixed. The tax rate is 23 percent, and the required return is 12 percent. Additionally, the president of the company will undertake the project only if it has an NPV of $125,000. What bid price should you set for the contract? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.)