For a summer job you take a position as an accident investigator for your local police force. On your first day you are called to the scene of a possibly minor accident at a large intersection with a 4-way stop. From the positions of the cars you can see that driver A was traveling northward in a small car and driver B was traveling eastward in a car that looks like it has approximately twice the mass of car A. The debris from their collision is in the center of the intersection. You can see the 5 m long marks left by the skidding tires that lead from the impact point to where the cars now rest, stuck together. The skid marks point in a direction 18.4˚east of north. From your measurements of the marks and from knowing something about the frictional force of asphalt on tires, you estimate that the cars were moving about 20 miles per hour immediately after the collision. Driver A says that driver B ran through a stop sign. Driver B says the opposite. You determine the speeds that each driver was traveling to help determine who is at fault. Make sure that y explain clearly how you determined the speeds of each car.

Felix Baumgartner, an Austrian skydiver and daredevil, made history’s highest and fastest jump. After ascending to more than 128,000 feet in capsule tethered to a helium balloon, Baumgartner jumped and became the first human to break the sound barrier as he fell at a rate of 833 miles per hour and had a free-fall of more than 4 minutes.

The event was sponsored and funded by Red Bull – a company known for pushing the envelope of crazy and risky sports.The company doesn’t consider this a stunt though, preferring to characterize the program as a professional flight test program. Red Bull spent more than five years on the project with an expert staff of scientists, engineers, and physicians – many of whom had experience with NASA programs. The cost to Red Bull has not been disclosed, but estimates on the return to the company in regards to visibility, branding, and goodwill tops $8 billion.

Why do companies sponsor events – oftentimes events that seem to have little to do with their products?

What do companies gain? What do they risk?

How does the Stratos project fit with the Red Bull brand and target market? How does it fit with other promotional tools used by Red Bull?

1. Blue Spruce Corp. purchased a new machine on October 1, 2019, at a cost of $134,000. The company estimated that the machine will have a salvage value of $20,000. The machine is expected to be used for 10,000 working hours during its 5-year life.

Compute the depreciation expense under straight-line method for 2019. (Round answer to 0 decimal places, e.g. 2,125.)
2019 Depreciation expense:

2. Yello Bus Lines uses the units-of-activity method in depreciating its buses. One bus was purchased on January 1, 2019, at a cost of $227,125. Over its 4-year useful life, the bus is expected to be driven 132,500 miles. Salvage value is expected to be $8,500.

Compute the depreciable cost per unit. (Round answer to 2 decimal places, e.g. 0.50.)

Depreciation cost per unit:        per mile

3. In recent years, Sheffield Transportation purchased three used buses. Because of frequent turnover in the accounting department, a different accountant selected the depreciation method for each bus, and various methods were selected. Information concerning the buses is shown as follows.

For the declining-balance method, the company uses the double-declining rate. For the units-of-activity method, total miles are expected to be 124,000. Actual miles of use in the first 3 years were 2018, 26,000; 2019, 31,500; and 2020, 29,500.

For Bus #3, calculate depreciation expense per mile under units-of-activity method. (Round answer to 2 decimal places, e.g. 0.50.)

Depreciation expense:    per mile

USE CHART BELOW THIS

4. On January 1, 2019, Pina Colada Company purchased the following two machines for use in its production process.

Prepare the following for Machine A. (Round answers to 0 decimal places, e.g. 2,125. Credit account titles are automatically indented when amount is entered. Do not indent manually. If no entry is required, select "No Entry" for the account titles and enter 0 for the amounts.)

5. At December 31, 2019, Sheffield Corp. reported the following as plant assets.

During 2020, the following selected cash transactions occurred.

Journalize the above transactions. The company uses straight-line depreciation for buildings and equipment. The buildings are estimated to have a 50-year life and no salvage value. The equipment is estimated to have a 10-year useful life and no salvage value. Update depreciation on assets disposed of at the time of sale or retirement. (Credit account titles are automatically indented when amount is entered. Do not indent manually. Record journal entries in the order presented in the problem. If no entry is required, select "No Entry" for the account titles and enter 0 for the amounts.)

HW Problem 5: A 150 kW motor drives a hollow round shaft at 1,200 rpm. The outer diameter of the shaft is 100-mm and the inner diameter is 0.95*outer diameter. It is made of AISI 1050 WQ&T at 425- deg C.

(a) Look online or the book and explain briefly what “WQ&T” in the material designation stand for, and how it is different than OQ&T. Which is stronger at the specified temperature?

(b) Determine the maximum torsional shear stress (Tau max) in the hollow shaft. Write the units. Hint: Use the kW power equation, find torque, and find J to find Tau max. Use N, mm, MPa.

(c) Determine the safety or no safety factor for static loading (ns) according to (i) Tresca theory, and (ii) von-Mises theory. Hint: Read Sy from table and then calculate Ssy by Tresca and von-Mises. Then use (ns,Tresca) = (Ssy,Tresca) / (Tau max); (ns,von) = (Ssy,von) / (Taumax).

(d) If the calculated safety factor is more than 4.0, what parameters would you change to bring it down below 4.0 (and of course, above 1.0)?

The Canadian Parliament is considering imposing a tariff on the importation in Québec of bicycles made in France in order to protect its cycle industry. Let us further assume that Québec is considered to be a “small country” in this industry. At present, there is no tariff or other import barrier. Canada (all provinces) produces 1.0 million bikes a year and imports another 0.4 million bikes a year. Currently, the world price of bicycles is $400 a unit. Parliament wants to impose a $40 import tariff per bike.

To conduct this analysis, redraw Figure 8.4 of Pugel’s book, as a starting point. Choose carefully the slopes of the supply and demand curves. Remove the book’s numbers and put in the numbers given here.

1. Consumer surplus

2. Producer surplus

3. Government revenue

4. Net national loss from the tariff

5. Effective rate of protection if in addition to the proposed tariff on bikes, there is also a 5% tariff on inputs (frame, gears, etc.)

6.Maximum net national loss and under which circumstances

7.Minimum net national loss and under which circumstances

8.Do you recommend Parliament to go ahead with their plan? Why or why not

Thomsen Company just concludes negotiations for the sale of telecommunication equipment to Churchill, a British firm, for ?1,000,000

The sale is made in March with payment due three months later in June

The financial and market information is as follows:

- Spot exchange rate: $1.7640/?

- Three-month forward rate: $1.7540/?

- Cost of capital for Thomsen company: 12%              

- U.K. three-month deposit (borrowing) interest rate: 8% (10%)

- U.S. three-month deposit (borrowing) interest rate: 6% (8%)

- Put option expired in June for ?1,000,000 with the strike price $1.75/? ($1.71/?) is quoted as 1.5% (1.0%) premium or (2) a put option with the strike price of $1.71/? and the premium of 1%

- Thomsen’s foreign exchange advisory service forecasts that the spot rate after three months will be $1.76/?

- Thomsen’s minimum acceptable margin is at a sales price of $1,700,000, which implies the budget rate, the lowest acceptable dollar per pound exchange rate, is at $1.70/?

Thomsen has four alternatives to manage transaction exposure:

- Remain unhedged

- Hedge in the forward market

- Hedge in the money market

- Hedge in the options market

Analyze the choices for Trident.

The iodination of acetone, CH3COCH3, in aqueous solution is catalyzed by the hydrogen ion H+:

I2+CH3COCH3H+⟶HI+CH3COCH2I

The reaction can be followed visually by adding starch. The purple starch-iodine complex forms immediately, then disappears when the iodine has been consumed. The kinetics of the reaction may be determined by recording the time required for the color to disappear, which is the time required for the iodine, I2, to be consumed.

The following data were acquired in an iodination experiment involving acetone. All reaction times are in terms of the rate of disappearance of I2.

Calculate: What is the rate constant at 42.4 ∘C based on the data collected for trial E?

Researchers wish to know if the data they have collected provide sufficient evidence to indicate a difference in mean serum uric acid levels between normal individuals and individuals with Down’s syndrome The data consist of serum uric acid readings on 12 individuals with Down’s syndrome and 15 individuals without Down’s syndrome. The means are x1=4.5 mg/100 ml for those with Down’s syndrome and x2=3.4 mg/100 ml for those without. s₁ = 1.0 and s₂ = 1.2.

a. State whether the test is:

i) a two-sample t-test (independent samples)

ii) a matched pairs

iii) a two sample proportion test

b. Write H0 and H1

c. Using Minitab, list the test statistic the p-value your conclusion: reject H0 or do not reject H0. Note: if α is not provided, use a 0.05 significance level

d.   Write a sentence that explains your conclusion in context with the claim. Include the significance level and p-value in this sentence.

e.   Copy and paste the relevant Minitab output into the document. Answers alone are sufficient, you do not need to copy the exercise into the document.

please use the temperature adjustment listed at the bottom for part b as well. assume: steady state, constant temp and pressure, ideal gas solution, B is insoluble in A, and Nb,z in gas phase =0.

Evaporation of volatile liquid.  A tank with its top open to the atmosphere contains liquid benzene.   The tank and atmosphere are at 25 oC.  The inner diameter of the cylindrical tank is 1.0 m, the height of the tank is 3.0 m, and the liquid level is at 0.5 m from the inside bottom of the tank.   Assume the gas space inside the tank is stagnant and that the methanol vapor is immediately dispersed into the atmosphere once outside of the tank.  

    a)  What is the evaporation rate of benzene from the tank, in kg/day, at 25 oC?

    b)  What is the evaporation rate of benzene from the tank, in kg/day, at 35 oC?

    c)   Would you expect the evaporation rate to be a linear function of temperature?  Explain.

Hints: Note that the quantity P•DAB for binary gas systems are given in Appendix J, at specified temperatures, where P is the pressure in the system.  To calculate the DAB at a different temperature, you can use the correction of (T2/T1)1.75.