(Practical magnetism) As we will see in lab, the magnitude ?? of the magnetic field of a permanent magnet drops with distance d so that ?? ∝ 1/? 2 when d is less than the size of the magnet (where you “feel” only the closest pole) but ?? ∝ 1/? 3 farther away (where both poles “blur together” and the field is weaker). (a) Could a coin-sized magnet in your wallet or purse erase the magnetic strip on your credit card or hotel room key? Suppose the magnet is 2 mm thick, and measure d from its center. Consider both a fridge magnet (?? = 5 mT at the surface) and a neodymium coin magnet (?? = 1 T at the surface). To erase a magnetic strip requires 4000 G for a “high-coercivity” (“HiCo”) card such as a credit card, but only 300 G for a “low-coercivity” (“LoCo”) card such as a hotel room key. (b) If so, how far apart should you keep them? (c) Could wearing a “magnetic stone” (with field strength comparable to a fridge magnet) affect your health? To answer this, ask yourself whether people’s health is affected by the Earth’s magnetic field, of strength about 0.2 G? At what distance from the stone do you experience this same field strength?

This problem has several parts journalizing adjusting entries, preparing a ledger using T accounts, adjusted trial balance, income statement, retained earnings statement, classifed balance sheet and determine which accounts to close at end of the month. HELP!!!!

The Pharoah Hotel opened for business on May 1, 2022. Here is its trial balance before adjustment on May 31.

Other data:

Posa Hotels, Inc., has a sixth night free policy. Every sixth night a guest stays at the hotel is free. Because not all guests stay enough nights to earn a free stay, on average the number of free nights redeemed is 70% of the maximum possible number of free nights available one obtains by dividing the total number of paid nights the hotel has had by 5. Rooms at Posa Hotels cost $300 per night. In 2019, Posa had a total of 100,000 paid room-nights and collected a total of $30 million from customers. Also in 2019, customers redeemed a total of 10,000 free room-nights. Some of the room-nights awarded were based on customers paid nights from previous years and some were based on paid nights from the current year. Required: Prepare journal entries to record revenue for 2019 for Posa. (If no entry is required for a particular transaction, select "No journal entry required" in the first account field. Do not round intermediate calculations. Round your answers to the nearest whole dollar amount.) 1)Prepare the entry to record the revenue recognized for the nights paid by customers. 2)Prepare the entry to record the revenue recognized for the free nights redeemed by customers.

8. The Smart CPA firm held an End of Tax Season party. The company expected attendance of 75 people and prepared the following budget:

Hotel room rental $600
Food 1,000
Entertainment 750
Decorations 250
Total Costs $2,600

Seventy five people attended the party. The following costs were incurred:

Hotel room rental $600
Food 1,150
Entertainment 750
Decorations 350
Total Costs $2,850

What is the variance for total costs?
A) $300 Unfavorable
B) $300 Favorable
C) $250 Favorable
D) $250 Unfavorable

9. The various stages through which a product passes are called the ________.
A) product life cycle
B) value chain
C) performance plan
D) product performance plan

10. Research and development is the function of a value chain that involves ________.
A) the detailed design and engineering of products, services or processes
B) the generation of ideas related to new products only
C) the generation of ideas related to new products, services or processes
D) the detailed design and engineering of new processes

11. Which of the following is a major factor causing changes in management accounting today?
A) additional value chain functions
B) small advances in technology
C) increased global competition
D) shift to manufacturing-based economy

Marilyn Helm Retailers is attempting to decide on a location for a new retail outlet. At the​ moment, the firm has three​ alternatives: stay where it is but enlarge the​ facility; locate along the main street in nearby Newbury​; or locate in a new shopping mall in Hyde Park.

The company has selected the four factors listed in the following table as the basis for evaluation and has assigned weights as​ shown:

​a) Based on the given​ information, the best location for Marilyn Helm Retailers is to open the new retail outlet in _____, with a total weighted score of_____​(Enter your response rounded to two decimal​ places.)

​b) A new subway station is scheduled to open across the street from the present location in about a​ month, so its third factor score should be raised to 75. Then, the best location for Marilyn Helm Retailers is to open the new retail outlet in ______, with a total weighted score of ____.(Enter your response rounded to two decimal​places.)

(must be done in JAVA code)

A company dedicated to parking management has decided to renew itself by automating its control process since this process is done manually. The company has hired its development team to automate the process and gave it an October 19th deadline until 6 pm. An analyst defined the system requirements as follows:

1. The system must allow configuring the number of spaces that a vehicle parking lot will contain.

2. The system must allow the person in charge (normally a security person) to consult the available spaces to be able to indicate to the arriving users where to park.

3. The system must allow the person in charge (normally a security person) to enter the space where they will park, the license plate, brand, color and commercial value of the vehicle to be parked. In some cases, the person in charge may omit the commercial value of the vehicle due to ignorance, for these cases a default value of 30 million will be saved.

4. The system must allow the status of all the spaces in the building to be consulted.

5. The system must allow printing all the information of the parked vehicles.

6. The system must allow consulting the information of a parked vehicle.

7. The system must be able to change the sensor status (available to occupied) when a car occupies a parking space.

Overproduction of uric acid in the body can be an indication of cell breakdown. This may be an advance indication of illness such as gout, leukemia, or lymphoma.† Over a period of months, an adult male patient has taken six blood tests for uric acid. The mean concentration was x = 5.35 mg/dl. The distribution of uric acid in healthy adult males can be assumed to be normal, with σ = 1.93 mg/dl.

(a) Find a 95% confidence interval for the population mean concentration of uric acid in this patient's blood. What is the margin of error? (Round your answers to two decimal places.

(d) Find the sample size necessary for a 95% confidence level with maximal margin of error E = 1.02 for the mean concentration of uric acid in this patient's blood. (Round your answer up to the nearest whole number blood tests.

Let x be a random variable that represents the weights in kilograms (kg) of healthy adult female deer (does) in December in a national park. Then x has a distribution that is approximately normal with mean μ = 52.0 kg and standard deviation σ = 8.5 kg. Suppose a doe that weighs less than 43 kg is considered undernourished.

(a) What is the probability that a single doe captured (weighed and released) at random in December is undernourished? (Round your answer to four decimal places.)


(b) If the park has about 2450 does, what number do you expect to be undernourished in December? (Round your answer to the nearest whole number.)
does

(c) To estimate the health of the December doe population, park rangers use the rule that the average weight of n = 45 does should be more than 49 kg. If the average weight is less than 49 kg, it is thought that the entire population of does might be undernourished. What is the probability that the average weight x for a random sample of 45 does is less than 49 kg (assuming a healthy population)? (Round your answer to four decimal places.)


(d) Compute the probability that x< 53.4 kg for 45 does (assume a healthy population). (Round your answer to four decimal places.)

1. Suppose individuals A and B have the same money income and tastes and face the same set of prices of all goods except access to a free National Park. (They will be 2 points on the same demand curve; find the equation to the line and the X and Y intercepts.) Individual A lives farther away than individual B and has higher travel costs. Their annual use is summarized as:

How much consumer surplus does each individual receive per year from the park usage? What are the total social benefits (as measured by the sum of the consumer surplus measures) from the park?

2. A worker, who is typical in all respects, works for a wage of $50,000 per year in a perfectly safe occupation. Another typical worker does a job requiring exactly the same skills as the first worker, but in a risky occupation with a known death probability of 1 in 10,000 per year, and receives a wage of $60,000 per year. What value of a human life for workers with these characteristics should a cost-benefit analyst use?  

3. Manufacturers in an urban environment are currently producing 25,000 widgets per year. Their gross revenue is $300 per widget with variable costs of $125 per widget. Air quality in the city has fallen to a level of 20 points measured on a 0-100 scale. Three proposals could improve the air quality. Option I involves annual direct costs of $100,000 which raises the air quality index to 32; option 2 costs $130,000 per year and raises the index to 42; option 3 costs $150,000 per year and raises the index to 50. Also producers are required to reduce their widget output by: 5% under option 1, 10% under option 2, and 15% under option 3.

a. Which option has the lowest total opportunity cost?

b. Which option has the lowest cost per unit of air quality improvement?

c. Why might neither of these be the most efficient?

Question 2

Mark Limited is an investment company that purchases buildings and holds them for a, number
of purposes, such as resale, leasing and its own use.
On 1 January 2019, Mark Limited purchased an old building, Mark Towers, for N$300 000.
Conveyancer’s fees amounted to N$20 000
• This building is situated in an isolated part of Durban (South Africa) and there is no
development anywhere nearby. At the time of purchase, there had been no property
transactions in this area for many years and the possibility of leasing the building to tenants
was remote.
• During November 2019, development began of a new industrial park in the area. As a
result, the building was able to be leased to tenants involved in the development of the
industrial park. Due to the influx of people of people into the area, the directors decided to
paint one side of the buildings with the corporate logo of Mark Limited.
• This building has never had an air-conditioning system. After numerous complaints from
tenants about not being able to tolerate the Durban heat, Mark Limited decided to upgrade
the building by installing a ducted air-conditioning system on 1 December 2019.
The cost of installation included the following:
- Adjustments to the structure of the building 30 000
- Painting 50 000
- Air-conditioning system 200 000
- Installation costs 50 000
The ducted air-conditioning system has a 10 year life and a nil residual value
• As a result of the new industrial park, there was suddenly a demand for properties in the
area. As a result, the fair value of Mark Towers was able to be determined on 31 December
2019 at N$420 000. Mark Limited would like to measure this investment property at fair
value now that fair values have become available.
• The building has a 10 year useful life and an estimated residual value of N$50 000
Mark Limited also holds other investment property, which is measured under the fair value model.
The fair value of this other investment property is as follows:
• 1 January 2019 N$ 1 000 000
• 31 December 2019 N$ 1 250 000