a. Find and list 3 references regarding a synchronous machine. Then, in your own words, state the operation of a 3 phase synchronous machine.

b. Compare and contrast the behaviors of synchronous and asynchronous machines. Specifically mention how torque is obtained from the stator

a) A heat engine that has a thermal efficiency of 100% violates the second law of thermodynamics, but not necessarily the first law. The second law of thermodynamics states that it is impossible to convert all the heat energy into work without any losses.

Therefore, a heat engine with 100% thermal efficiency would imply that all the heat energy supplied to the engine is converted into work, which is impossible. However, the first law of thermodynamics, which is the law of conservation of energy, is not violated, as the total energy of the system (heat energy + work energy) is conserved.

b) In the absence of any friction and other irreversibility, a heat engine can have an efficiency of 100%. This is because the inefficiencies in a heat engine are primarily due to frictional losses and other irreversibility, such as heat transfer to the environment. In the absence of these losses, all the heat energy supplied to the engine can be converted into work, resulting in a thermal efficiency of 100%.

c) Yes, the efficiencies of all work-producing devices, including hydroelectric power plants, are limited by the Kelvin-Planck statement of the second law of thermodynamics. The Kelvin-Planck statement states that it is impossible to construct a heat engine that produces no other effect than the extraction of heat from a single heat reservoir and the performance of an equivalent amount of work. This implies that a portion of the heat energy supplied to a work-producing device must always be rejected to the environment, limiting the device's efficiency.

d) The average value of the required solar energy collection rate, in Btu/h, can be calculated as follows:

First, we need to convert the net power output from kW to Btu/h:

350 kW x 3412.14 Btu/kW = 1,192,749 Btu/h

The efficiency of the solar power plant is given as 4%. Therefore, the solar energy collection rate can be calculated as follows:

Solar energy collection rate = Net power output / Efficiency

Solar energy collection rate = 1,192,749 Btu/h / 0.04

Solar energy collection rate = 29,818,725 Btu/h

Therefore, the average value of the required solar energy collection rate is 29,818,725 Btu/h

Learn more about thermodynamics here:

https://brainly.com/question/1368306

#SPJ11

An ASME (American Society of Mechanical Engineers) approved safety relief valve used on a hot water boiler is tested at the factory to ensure that it opens at the set pressure and reseats tightly after opening. This is critical for ensuring that the safety relief valve operates correctly during an overpressure event, which could otherwise lead to a catastrophic failure of the boiler.

During the factory testing process, the safety relief valve is subjected to a series of tests, including pressure testing, seat tightness testing, and operational testing. The valve is also visually inspected to ensure that it is free from defects or damage that could impair its performance.After the safety relief valve is tested and approved, it is marked with the ASME certification mark and other identifying information, such as the set pressure and capacity, to indicate that it meets the appropriate safety standards for use on a hot water boiler.

To learn more about  catastrophic click on the link below:

brainly.com/question/17372805

#SPJ11

For a wear indicator type ball joint, when the grease fitting boss is flush with the base: B. The ball joint should be replaced.

A wear indicator can be defined as a type of technology that is designed to alert and warn a car owner or driver that the car's brake pad is needs a replacement.

Generally, a wear indicator is designed and fitted with a small boss. Thus, this small boss would continuously recede into its housing as wear occurs. However, when it recedes into the cover plate or flush with the base, it simply means that the ball joint should be replaced.

Read more on ball joint here: https://brainly.com/question/14318856

Answer:

F(F) = 15037 lb

F(E) = 24481.5 lb

F(D) =  24481.5 lb

Explanation:

(The diagram of the figure and Free Body Diagram is attached)

W(A) = 50,000 lb

W(B) = 8000 lb

W(C) = 6000 lb

F(F) + F(E) + F(D) - W(A) - W(B) - W(C) = 0

F(F) + F(E) + F(D) = W(A) + W(B) + W(C)

F(F) + F(E) + F(D) = 50000 + 8000 + 6000

F(F) + F(E) + F(D) = 64000 lb

∑M(o) = M(F) + M(E) + M(D) + M(A) + M(B) + M(C)

Where

M(F) = 27i × F(F)k = -27F(F)j

M(E) = 14j × F(E)k = 14F(E)i

M(D) = -14j × F(D)k = -14F(D)i

M(A) = 7i × -50000k = 350,000j

M(B) = (4i - 6j) × -8000k = 48000i + 32000j

M(C) = (4i + 8j) × -6000k = -48000i + 24000j

∑M(i) = 14F(E) - 14F(D) = 0

F(E) = F(D)

∑M(j) = -27F(F) + 350,000 + 32,000 + 24,000 = 0

27F(F) = 406,000

F(F) = 15037 lb

F(E) = F(D)

F(F) + 2F(E) = 64000

2F(E) = 64000 - 15037

2F(E) = 48963

F(E) = 24481.5 lb

F(D) =  24481.5 lb

2% glutaraldehyde is a disinfectant that is often used. preferred agent for semi-critical objects that can't be exposed to such adaptable fiberoptic sigmoidoscopy.

The small incision medical procedure known as a sigmoidoscopy examines the large intestine from the rectum to the sigmoid colon, which is the closest portion of the colon. There are two different forms of sigmoidoscopy: rigid sigmoidoscopy employs a rigid equipment while flexible sigmoidoscopy uses a flexible endoscope. The chosen procedure is usually flexible sigmoidoscopy. Although they are not the same, a colonoscopy and a sigmoidoscopy are related procedures. While a colonoscopy looks at the entire big bowel, a sigmoidoscopy just looks at the sigmoid, which is the farthest portion of the colon. The doctor can view the interior of the large intestine from the rectum to the sigmoid, or left side of the colon, using flexible sigmoidoscopy. The process can be used by doctors to identify the source of constipation, abdominal pain, or diarrhea. In the descending colon and rectum, they also utilize it to check for benign and malignant polyps as well as early indications of cancer. The doctor can see intestinal bleeding, inflammation, abnormal growths, and ulcers in the descending colon and rectum during flexible sigmoidoscopy.

Learn more about sigmoidoscopy here

https://brainly.com/question/29573794

#SPJ4

Answer:

True

Explanation:

True - because different classification of steel beam have different yield strength.

The moment capacity for a steel beam is given by;

M = Mn / Ωₙ

where;

M - the maximum moment acting on the beam

Ωₙ - is the Safety Factor for Elements in Bending = 1.67

Mn - nominal moment of the steel, given as

\(M_n = Z_x *f_y\)

where;

Zₓ - the Plastic Section Modulus in the x or strong axis.

\(f_y -\) is the Yield Strength of the Steel (A36W, A46 W or A50W)

A36W = 36 ksi

A46 W = 46 ksi

A50W = 50 ksi

Thus, before you calculate the moment capacity for a steel beam, you have to determine the classification of beam, for the yield strength of the steel beam.

Yes, according to the question, all major PC operating systems feature a graphical user interface.

What is operating system?
An operating system (OS) is a type of software that manages the hardware and software resources of a computer. It is responsible for the management and coordination of activities and the sharing of the resources of the computer. It acts as an intermediary between the user of a computer and the computer hardware. The operating system allows the user to interact with the hardware and execute programs. It provides a platform on which the applications can run. It provides services such as memory management, device management, task scheduling, security, networking, and file system management. It also provides the user interface, which allows the user to interact with the system.

To learn more about operating system
https://brainly.com/question/26950938

#SPJ4

Answer:

water vapor and carbon dioxide.

Explanation:

Hope this helps :D

Possible candidate keys for this automobile dealership include the stock number and the vehicle identification number (VIN), as they are unique identifiers for each vehicle in the dealership's inventory.

The likely primary key would be the stock number or VIN, as they are both unique and can be used to easily search and retrieve information about a specific vehicle.A probable foreign key could be the invoice number, as it may be used to link vehicle information with the dealership's accounting system. For example, a sales transaction for a specific vehicle may reference the invoice number, which can be used to retrieve the invoice cost and other financial information.Potential secondary keys could include the make, model, year, and color of the vehicle. These fields can be used to search and filter the inventory based on specific criteria, such as finding all vehicles of a certain make or year.

To learn more about vehicle click the link below:

brainly.com/question/15188444

#SPJ1

Technician B says that moisture in the system will dry out if the system is left open for several hours and compressed air is blown through the lines is  is correct. Hence, option B is correct.

Power tools like air hammers, drills, wrenches, and others employ compressed air as a significant channel for the transfer of energy in industrial operations.

Even though many individuals are aware that using compressed air to remove debris or clean garments might be dangerous, it is nonetheless done due of ingrained behaviours and the fact that compressed air is readily available in many workplaces.

However, using compressed air to clean equipment, clothing, surfaces, or other items might be hazardous. The air is compressed when atmospheric air is taken and subsequently physically compressed into a smaller volume.

Thus, option B is correct.

For more information about compressed air is used for, click here:

https://brainly.com/question/23945466

#SPJ2

Answer:

this message usually appears when the server certificate is self- signed or when you have used the wrong hostname to connect. the name of the certificate needs to match the hostname u use to contact the server.

Explanation:

Im a computer engineering student

Explanation:

D the answer is D and anyone can answer this Question

Based on the provided options, the scientific expression that is the same as 1545.5347 is 154553.4e3. Therefore, the correct option is option D.

A scientific expression, often known as scientific notation, is a method of representing extremely big or extremely small integers. It is often used to simplify the representation of such numbers in scientific and mathematical operations. A number is expressed in scientific notation as a product of two parts: a coefficient and a power of ten.

The coefficient is a value between 1 and 10, and the power of 10 determines how far the decimal point should be moved. The "e3" signifies multiplying the integer by 10 raised to the power of 3, which is similar to moving the decimal point three places to the right in this formula. As a result, 154553.4e3 equals 154553.4103, which simplifies to 154553400.

Therefore, the correct option is option D.

To know more about scientific expression, here:

https://brainly.com/question/15361382

#SPJ4

Answer:

\(97.085\ \text{kPa}\)

Explanation:

\(P_{g}\) = Gauge pressure = 2.2 atm = \(2.2\times 101325=222915\ \text{Pa}\)

\(P_{abs}\) = Absolute pressure = \(3.2\ \text{bar}=3.2\times 10^5\ \text{Pa}\)

\(P_{atm}\) = Local atmospheric pressure

Absolute pressure is given by

\(P_{abs}=P_{atm}+P_g\\\Rightarrow P_{atm}=P_{abs}-P_g\\\Rightarrow P_{atm}=3.2\times 10^5-222915\\\Rightarrow P_{atm}=97085\ \text{Pa}=97.085\ \text{kPa}\)

The local atmospheric pressure is \(97.085\ \text{kPa}\).

Answer: The outer surface temperature is \(377.5^{o}C\).

Explanation:

Given: Heat = 3 kW (1 kW = 1000 W) = 3000 W

Area = 10 \(m^{2}\)

Length = 2.5 cm (1 cm = 0.01 m) = 0.025 m

Thermal conductivity = 0.2 W/m K

Temperature (inner) = \(415^{o}C\)

Formula used is as follows.

\(q = KA \frac{(t_{in} - t_{out})}{L}\)

where,

K = thermal conductivity

A = area

L = length

\(t_{in}\) = inner surface temperature

\(t_{out}\) = outer surface temperature

Substitute the values into above formula as follows.

\(q = KA \frac{(t_{in} - t_{out})}{L}\\3000 W = 0.2 \times 10 \times \frac{415 - t_{out}}{0.025 m}\\t_{out} = 377.5^{o}C\)

Thus, we can conclude that the outer surface temperature is \(377.5^{o}C\).

Answer:

Product Teardown 28 pieces (1) Plastic packaging: protect and display product for purchase. (4) Exterior screws: hold case halves together. (1) Right case half: acts as part of a handle and contains the rest of the parts. (1) Left case half: acts as part of a handle and contains the rest of the parts.

Explanation:

A product teardown process is an orderly way to know about a particular product and identify its parts, system functionality to recognize modeling improvement and identify cost reduction opportunities. Unlike the traditional costing method, tear down analysis collects information to determine product quality and price desired by the consumers.

Answer:

?

Explanation:

Answer:

Fast or wide-open throttle position

Whether a slowly increasing market is preventing enterprises in the area from making a profit.

The specs give an explanation of the desired system's behaviors, attributes, or traits. Therefore, the main duty of the criteria is to ensure that all concerned parties understand them. The procedures involved in working with requirements include identification, analysis, verification, and management, among others. How do you format examples of requirements? The requirements must be clear, specific, condensed, and exhaustive. Make sure the requirements are concise, clear, and to the point while yet being able to capture the entire demand. Short sentences facilitate reading comprehension and make it simple to organize the demands. The specs give an explanation of the desired system's behaviors, attributes, or traits. Therefore, the main duty of the criteria is to ensure that all concerned parties understand them.

Learn more about Requirements here:

https://brainly.com/question/29756444

#SPJ4

Using APA reference style, the references is attached below from Feldman, R. S. (2013) to American Psychology Association (2020)

APA reference style is a style of citing sources used by the American Psychological Association. It is primarily used in the social sciences and includes guidelines for citing sources both within the text of a document and in the reference list at the end of the document. The guidelines provide a consistent way of citing sources to make it easier for readers to identify and locate the sources cited in a document.

In the given problem, if we need to write the reference using APA style, it will take this format below

Reference Page:

Feldman, R. S. (2013). Psychology and your life (2nd ed.). New York, NY: McGraw Hill Companies.

Frontline. (n.d.). League of denial. Retrieved from https://www.pbs.org/wgbh/frontline/film/league-of-denial/

Friends. (2004). The one after Joey and Rachel kiss [Television series episode]. In D. Crane, & M. Kauffman (Executive producers), Friends. Burbank, CA: Warner Bros. Television.

Silver Linings Playbook. (2012). [Motion Picture]. United States: The Weinstein Company.

U.S. Energy Information Administration. (2013). Annual energy outlook 2013 with projections to 2040. Retrieved from http://www.eia.gov/forecasts/aeo/er/pdf/0383er(2013).pdf

Snickers. (2013, April 2). You’re not you when you’re hungry [Video file]. Retrieved from https://youtu.be/2rF_FRCd_LA

American Psychological Association. (2020). Publication manual of the American Psychological Association (7th ed.). doi:10.1037/0000165-000

Learn more on APA reference style here;

https://brainly.com/question/28008158

#SPJ1

A data analyst working on a dataset when begins the transform data phase of analysis will be taking these two actions: one is finding the correlation between data and the other is performing calculations on data. Therefore, options (c) and (d) hold the correct answers.

Data analysis refers to the technique of examing data sets in order to discover trends and build conclusions about the information the data sets contain. The transform phase is a phase data of analysis where a data analyst identifies patterns and relationships between different data sets. For doing so, the data analyst finds correlations between several data sets and performs calculations on them as well.

"

Here is the complete question

A data analyst is working on a dataset and begins the transform data phase of analysis. what are some of the actions that they will take? select all that apply.

a)  Filtering data

b)  Sorting data

c)  Finding a correlation in data

d)  Performing a calculaiton with data

"

You can learn more about  data analysis at

https://brainly.com/question/28070419

#SPJ4

Answer: A. Makes a commodity available for sale or exchange

Explanation: hope it helps ^w^

Answer:

The main reason for bridges collapses is: earthquakes (natural disasters) and construction incidents. Whenever a natural disaster occur, it makes the bridge collapse. An example is hurricanes. Hurricanes come with a great wind and that might lead to the bridge collapsing. Construction incidents means the bridge falls during construction. Those who are employed in health, safety and environmental management need to make sure that during the construction, they have examined the material and made sure it is strong. Working with economists, they should seek better understanding of the methods for minimizing the costs during the life of the bridge. In case for natural disasters, like flooding, they should make the bridge in a lever where the water won't reach the bridge. And they should have a limit for weight in the bridges because that is another reason it collapses, because the bridge does not support extra weight.

Explanation:

hope this helps

To ensure that a Zener diode remains in the reverse breakdown region and maintains a constant voltage drop, the Zener current (IZ) must be greater than the Zener knee current (IZK) specified in its datasheet. However, I'm unsure about the relevance of "rl" in your question. Could you please provide more context or clarify what "rl" refers to?

This assertion is untrue because, despite the fact that they both entail storing and retrieving data, a queue and a load are two distinct computerized systems used in computing science and programming.

A stacked is a logical construction created from a number of connected parts. The expression is commonly used in memory management and computer programming. Programmer platforms are supported by the data abstraction idea known as the last one with first out (LIFO). Push and pop are its two fundamental components.

Examples of stacks include a package of Pringles snack chips, a stack of eating dishes, and a pile of books. The fundamental tenet of operation is that the last thing users put into is the first thing you should take out. Stacks are Last In Fifo (LIFO) structures, in other words.

To know more about Stack visit:

https://brainly.com/question/14913725

#SPJ4

Engineering controls are an essential element of hazard control in the workplace, providing a means of minimizing or eliminating hazards at their source.

Engineering controls are a type of hazard control that reduces or eliminates the hazard at its source. Engineering controls are used to minimize or eliminate hazards that pose a significant risk of harm or danger to individuals, such as chemical or noise exposure.

These measures are frequently a vital component of an effective occupational health and safety program in the workplace. Examples of engineering controls include the use of ventilation to control fumes, dust, and other airborne hazards, as well as the use of sound barriers to reduce noise levels. In addition, the use of machine guards, interlocks, and other safety devices on equipment and machinery is considered a form of engineering control to safeguard workers from contact with hazardous moving parts.

Other types of engineering controls include changes in the manufacturing process or the substitution of less harmful materials to eliminate the hazard. Engineering controls are an essential element of hazard control in the workplace, providing a means of minimizing or eliminating hazards at their source. These controls, when combined with other forms of hazard control, such as administrative and personal protective equipment, provide a comprehensive approach to worker safety and health.

Learn more about Engineering controls

https://brainly.com/question/31096953

#SPJ11

Answer:

false

Explanation:

Answer:

THE ANSWER IS FALSE

Explanation:

GO FOR IT!!!!!

Answer:

¿Cuál es el efecto látigo?

Es un grave desajuste entre la demanda real de un producto y la demanda de los actores intermediarios en la cadena de suministro

Explanation: espero que te  yueda

In parallel computing, Amdahl's law is mainly used to predict the theoretical maximum speedup for program processing using multiple processors.

Speedup MAX is equal to 1/(1-p)+(p/s)

Maximum performance boost is Speedup MAX.

s is the performance gain factor of p once the improvements are put into place.

The section whose performance has to be enhanced is denoted by p.

For instance, if a system's performance can be doubled and the portion that can be increased represents 30% of the overall system, then

SpeedupMAX is equal to 1/((1-0.30)+(0.30/2)).

= 1.18

Now, in a different illustration, if a system's performance can be doubled and the portion that can be increased makes up 70% of the entire system, then

Speedup MAX is equal to 1/((1-0.70)+(0.70/2))

= 1.54

Amdahl's law, named after a computer architect named Gene Amdahl and his work in the 1960s, is a law showing how much latency can be taken out of a performance task by introducing parallel computing.

To learn more about Amdahl's law refer to:

https://brainly.com/question/28274448

#SPJ4