A circle with a radius of 0.3 meters is placed in the x-y plane in a magnetic field directed in the -z direction. It is wound once and its resistance is 8 Ohms. The initial magnetic field is 0.5 Tesla. The magnetic field is then changed in 0.7 s and the average induced current is 0.05 amps running counter-clockwise. First, find the final magnetic field to needed to induce this average current.
Then, the magnetic field (still in the -z direction) is held constant at the value of the final magnetic field that was just found. Then, the wire is reshaped into a square that is wound once in a time of 0.003 seconds. If the resistance does not change, what is the average induced current, in amps, when the wire changes shape? If it's clockwise include a negative sign.
In: Physics
A population proportion is 0.3. A sample of size 250 will be taken and the sample proportion p^- will be used to estimate the population proportion. Use z-table. Round your answers to four decimal places. Do not round intermediate calculations.
a. What is the probability that the sample proportion will be within plus or minus 0.03 of the population proportion?
b. What is the probability that the sample proportion will be within plus or minus 0.06 of the population proportion?
In: Statistics and Probability
A firm is financed with debt that has a market beta of 0.3 and equity that has a market beta of 1.2. The risk-free rate is 3%, and the equity premium is 5%. The overall cost of capital for the firm is 8%. What is the firmʹs debt-equity ratio?
a) 28.6%
b) 25.0%
c) 74.8%
d) 25.2%
In: Finance
. Air in a 0.3 m3 cylinder is initially at a pressure of 10 bar and a temperature of 330 K. The cylinder is to be emptied by opening a valve and letting the pressure drop to that of the atmosphere. What will be the final temperature and mass of gas in the cylinder if this is accomplished:
a) In a manner that maintains the temperature of the gas at 330 K?
b) In a well-insulated cylinder (Answer: Tfinal = 171 K).
In: Other
Three different companies each purchased trucks on January 1, 2018, for $50,000. Each truck was expected to last four years or 200,000 miles. Salvage value was estimated to be $5,000. All three trucks were driven 66,000 miles in 2018, 42,000 miles in 2019, 40,000 miles in 2020, and 60,000 miles in 2021. Each of the three companies earned $40,000 of cash revenue during each of the four years. Company A uses straight-line depreciation, company B uses double-declining-balance depreciation, and company C uses units-of-production depreciation.
Answer each of the following questions. Ignore the effects of income taxes.
b-1. Calculate the net income for 2021?
Company A:
Company B:
Company C:
c-1. Calculate the book value on the December 31, 2020, balance sheet? (Round "Per Unit Cost" to 3 decimal places.)
Company A:
Company B:
Company C:
d-1 Calculate the retained earnings on the December 31, 2021, balance sheet?
Company A:
Company B:
Company C:
In: Accounting
Rauschenberg Manufacturing is investigating which locations would best position its new plant relative to three important customers (located in cities A, B, and C). As shown in the table below, all three customers require multiple daily deliveries. Management limited the search for this plant to those three locations and compiled the following information:
|
Location |
Coordinates (miles) |
Deliveries per day |
|
A |
(300,300) |
5 |
|
B |
(500,200) |
3 |
|
C |
(300,100) |
6 |
a) Which of these three locations (A, B or C) yields the smallest total trael distance, based on Euclidean distances?
-Location ___ yields the shortest travel (transportation) distance of ________ miles. (Enter your response rounded to one decimal place).
b) Which of these locations is best, based on rectilinear distances?
-Location ___ is the best, yielding a travel (transportation) distance of _________ miles. (Enter your response as a whole number).
c) What are the coordinates of the center of gravity?
-The center of gravity is x * = _____ miles, y * = _____ miles. (Enter your response rounded to one decimal place).
Please show all work step-by-step.
In: Operations Management
A small plane can fly 350 miles with tailwind in 1 3/4 hour. In the same amount of time, the same plane can travel only 210 miles with a headwind. What is the speed of the plane in still air and the speed of the wind?
In: Math
Radius of Moon's orbit is 240000 miles and period of revolution is 27 days, diameter of Earth is 8000 miles and the value of gravity on its surface 32 ft/sec2. Verify the statement that the gravitational force varies inversely proportional to square of distance.
In: Physics
Q3: Why can a hotel, motel, or restaurant usually
operate with a current ratio
considerably lower than other types of businesses, such as
manufacturing
companies?
In: Finance
Servicescapes are the physical surroundings in which a service is delivered. What is the strengths and weaknesses of the layout of that Servicescapes from the hotel industry of both service delivery and the customer?
In: Operations Management