What is a batch size? Does it have any effects on GD?
What is a loss function? What role does it have on GD?
Can we initialize the parameters of a NN any way we wish? Why
or why not?

Answers

Answer 1

Batch Size: Batch size refers to the number of training examples used in one iteration of gradient descent (GD) during neural network training. It impacts the computational efficiency and convergence of the training process.


Loss Function: The loss function measures the error or discrepancy between the predicted output and the actual output of a neural network. It plays a crucial role in gradient descent by providing the gradient information necessary for updating the network's parameters.

Batch Size: The batch size determines how many training examples are processed before updating the neural network's parameters. A larger batch size can improve computational efficiency by leveraging parallelism, but it may require more memory. Smaller batch sizes provide more frequent parameter updates but can introduce more noise in the gradient estimate. The choice of batch size depends on the available computational resources, the dataset size, and the trade-off between accuracy and efficiency.
Loss Function: The loss function quantifies the error between the predicted output and the actual output. It is used to compute the gradient during backpropagation, which drives the parameter updates in GD. The choice of loss function depends on the nature of the problem, such as regression or classification. Different loss functions have different properties and affect the learning process. For example, mean squared error (MSE) is commonly used for regression tasks, while cross-entropy loss is suitable for classification tasks.
Parameter Initialization: The initialization of neural network parameters is crucial for successful training. While it is possible to initialize parameters randomly, it is important to consider the impact on training dynamics. Improper initialization can lead to convergence issues, vanishing or exploding gradients, and slow learning. Techniques such as Xavier/Glorot initialization and He initialization are commonly used to set the initial values of parameters based on the specific activation functions and network architecture. Proper initialization helps in achieving faster convergence and better performance during training.

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Related Questions

The has to produce goods 2 quarters periods. The company has a regular time capacity and forecast demand that is stated state in table below per month. Overtime capacity is 50% of regular time capacity multiply by 1.5 per month. Overtime cost is regular time cost multiply by 1.5, backorder cost is 50% of the regular cost, inventory-holding cost is R5 per unit, and beginning inventory is zero.

Answers

The given problem is concerned with a company that has to produce goods for two quarters' period. The company has a regular time capacity and forecast demand, which is given in the table below per month.

We are required to determine the overtime capacity, overtime cost, backorder cost, inventory-holding cost, and the beginning inventory. Given data: Demand | Regular time capacity50 | 50Overtime capacity | 50% of regular time capacity × 1.5= 50% of 50 × 1.5= 25 × 1.5= 37.5 units per month Overtime cost.

Therefore, the overtime cost and backorder cost are zero. Inventory-holding cost= 50 units × R5 per unit= R250Therefore, the company needs to work at 100% of the regular time capacity and 74% of the overtime capacity to meet the forecast demand of 50 units per month for two quarters.

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Before using a vise to mount work, you should do all of the following except

Answers

Before using a vise to mount work, wipe the vise base and worktable clean, inspect it for burrs and nicks, and bolt it firmly to the table.

What is meant by vise?A vise or vice is a mechanical tool used to hold an object in place so that work can be done on it. The two parallel jaws of a vise are threaded in and out by a screw and a lever, with one jaw being fixed and the other movable. A set of locking pliers with a lever action is what is meant by the term "vise grip." A vise, also spelled vice, is a holding mechanism with two parallel jaws; one jaw is fixed and the other is moveable via a screw, lever, or cam. The vise may be permanently affixed to a bench when used to hold a workpiece during manual processes like filing, hammering, or sawing.

The complete question is,
When a vise is used to mount work, ____.

wipe the vise base and worktable clean, inspect it for burrs and nicks, and bolt it firmly to the table

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A site is underlain by a 10 meter layer of saturated gravel with unit weight = 20 kN/m3. Point A is located 5 meters below the ground surface. The horizontal effective stress at point A is 30 kPa. Determine the lateral stress ratio of the soil at point A.

Answers

Answer:

The lateral stress ratio of the soil at point A is 0.3

Explanation:

given that; Unit weight = 20 kNm⁻³ at point A 5m below the ground surface,

vertical stress (\(V_{stress}\)) = 20 kNm⁻³ × 5m ⇒ 100 kNm⁻²

vertical stress (\(V_{stress}\)) = 100kPa

note that; Horizontal Stress (\(H_{stress}\)) is given by k(\(V_{stress}\))

where "k" is the lateral stress ratio

\(H_{stress}\) = k(\(V_{stress}\))

k = \(H_{stress}\) ÷ \(V_{stress}\)

k = 30 kPa ÷ 100 kPa

k = 0.3

the research findings of clark and clark’s (1939) doll study played a crucial role in which of the following supreme court decisions?

Answers

The research findings of Clark and Clark's (1939) doll study played a crucial role in Brown v. Board of Education

What is the  supreme court decisions?

Brown vs Board of Education case, the Supreme Court ruled that segregation in public schools was unconstitutional, meaning it was against the law and not allowed.

This decision led to the integration of schools, allowing students of all races to attend the same schools. The Supreme Court decided that it was against the law to separate students in public schools because of their skin color in the Board of Education case. The Clark doll study showed how segregation affected African American kids, and it was done by two important psychologists named Kenneth and Mamie Clark.

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if you are following a truck that swings left before making a right turn at an intersection, you should remember that it is very dangerous to:

Answers

If you are following a truck that swings left before making a right turn at an intersection, it is very dangerous to assume that the truck is making a left turn and attempt to pass it on the right.

When a truck swings left before making a right turn, it is likely performing what is known as a "wide right turn." This maneuver is often necessary for larger vehicles to negotiate turns safely without encroaching into other lanes or hitting curbs. It allows the truck driver to create sufficient space for the rear wheels to clear the turn.

As a driver behind the truck, it is crucial to recognize and understand this maneuver. Attempting to pass the truck on the right can put you in the truck's blind spot and increase the risk of a collision when the truck completes its right turn. It is safer to wait until the truck has completed its turn and the way is clear before proceeding.

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Is there a project idea, or invention that would be good for
my class.

Answers

Answer:

Explanation:

A torch with an additional bulb. ...

Wheel chair convertible to crutches. ...

Pen to check concentration. ...

Bulb/CFL remover/connector. ...

Multicolor headphone wires. ...

Adjustable electricity extension board. ...

Automatic blade swinging ceiling fan for easy cleaning

Answer:

static electricity

Explanation:

depending on what grade u are on

the reason why is because of that answer is because it sticks to your hair and u can zap people a little a least it feels like a pinch

What advantages does a 240 volt heating unit have over a 120 volt heating unit?

Answers

Answer:

the main advantage of a 240 volt heating unit over a 120 volt heating unit is that at 240V, you can get the same amount of power with less current than you'd need at 120V. This means that 240V requires less wiring , and you can fit more heaters on a 240V circuit than on a 120V circuit . Additionally, 240V power is more energy efficient and cost-effective in certain situations. However, it's important to note that the size and capacity of the heating unit can be a factor as well, and that both 120V and 240V heating units have their advantages depending on the specific needs and circumstances.

Explanation:

URGENT!!

PYTHON CODE
Assume you already have 2 variables: L which refers to a list of integers, and target, which refers to an integer.



Write a code that assigns the value True to a variable called found if the target exists in L and False otherwise



Additional Notes: L and target should not be modified

Answers

The code that assigns the value True to a variable called found if the target exists in L and False otherwise is:

found = target in L

How to determine the code segment?

From the question, we have the following parameters that can be used in our computation:

Initial variables = L and target

Where

L = List and target = integer

The condition is such that:

found = True if the target exists in L found = False if the target does not exist in L

There are several ways to do this.

One of them is the following code segment

found = target in L

Another way is

if target in L:

   found  = True

else

   found  = False

Another solution is

found  = False

if target in L:

   found  = True

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Determine the NPW, AW, FW and IRR of the following engineering project. • Initial Cost ($400,000) • The Study Period 15 years Salvage (Market) Value of the project 15% of the initial cost Operating Costs in the first year ($9,000) • Cost Increase 3% per year • Benefits in the first year $40,000 Benefit Increase 9% per year • MARR 8% per year Is the Project acceptable? WHY?

Answers

The CEO of PT ABC asked the project manager to use PW, AW, and FW to prioritize the project while also adding the expected reject rate between each alternative.

Thus, This implies that the anticipated revenue will vary depending on the choice. The three projects are prioritized by the project manager. The CEO will assess which option will be more profitable than the others.

The quantity of money that is accessible for investment, as well as where and how much it cost (for example, whether it came from equity funds or borrowed funds).

The quantity of worthwhile projects that are open to investment and their objective (i.e., whether they maintain current operations and serve a necessary purpose or whether they enlarge current operations and serve a discretionary purpose) and PW.

Thus, The CEO of PT ABC asked the project manager to use PW, AW, and FW to prioritize the project while also adding the expected reject rate between each alternative.

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there is usually a positive side and a negative side to each new technological improvement?

Answers

Answer:

positive sides:

low cost improves production speedless timeeducational improvements

negative sides:

unemployment lot of space required increased pollution creates lots of ethical issues

The user manual states an accuracy of 0.1% of the reading for a tachometer (an instrument measuring the rotation speed of a shaft or disk, as in a motor or other machine) with an analog display dial graduated in 5 revolutions per minute (rpm) increments. Estimate the design stage uncertainty at 5000 rpm.

Answers

Answer: the design stage uncertainty is ±5.6 rpm

Explanation:

Given that;

machine with an analog display dial graduated in 5 revolutions per minute (rpm) increments; Q = 5 rpm

now lets calculate zero order uncertainty in this machine

⇒ ± 1/2Q =  1/2(5) = ± 2.5 rpm

given that accuracy is 0.1% of reading

0.1% of 5000 rmp = 0.1/100 × 5000 = 5 rpm

now the design stage uncertainty at 5000 rpm will be;

⇒ √((5)² + (2.5)²)

= √(25 + 6.25)

= √ 31.25

= ±5.59 ≈ ±5.6 rpm

Therefore the design stage uncertainty is ±5.6 rpm

According to the video, which abilities and skills do Human Resources Managers need to have? Check all that apply.
math skills
in-depth knowledge of the company's product
sensitivity to other people's needs
speaking skills
writing skills

Answers

Answer:

C, D, E

Explanation:

just did it on edge 2020

Answer:

c

d

e

Explanation:

edgunity 2020

giúp em làm câu này với ạ em cám ơn em cần gấp lắm

gip em lm cu ny vi em cm n em cn gp lm

Answers

Answer:

the problem I see real people here to have that much respect that is not going in that direction or the best.

non-BIBO are never used in practice. True/false

Answers

It is false non bibo are used in practice

Assume that 50,000 yd3 of the soil from a local borrow pit in Rhode Island, with a water content of 13% and dry unit weight of 87 pcf, is to be delivered to a construction site for some repairs of highway in I-95. By the time it reaches the site, the water content is 9%. It will be compacted to a minimum of 90% of the modified Proctor maximum dry density. Determine the total amount of water (in pounds), that must be added to the soil to increase the moisture content to the optimum level. Assume a Gs

Answers

Answer:3000 yd3

Explanation:

so i got the 50000 divided it by 100 times that by 13 and got 4500 yd3

so now the soil is at 9 so i need to get the 4 percent back up so i yet again got 50000 yd3 and divided by 100 and times it by 9 to get 1500 yd3 to then minus my 1500 and 4500 yd3 and got 3000 yd3 i hope it is right.

When driving a commercial motor vehicle safely, it is recommended that you leave at
least one second between your vehicle and the vehicle you are following for each
feet of your vehicle's length.

Answers

Answer:

If you are driving below 40 mph, you should leave at least one second for every 10 feet of vehicle length.

The future and success of the electric car largely depend on the
development and improvement of one of its key components: the
battery. Science has been looking for alternatives to lithium for some time, such as graphene, carbon dioxide, zinc-air, but it seems that now a solution has begun to appear on the horizon: solid-state batteries.
Regarding solid-state batteries, investigate the following:
1. Describe the main features of the technology; eg how they operate, what they are made of, why they are called "solid state", what their components are.
2. Describe the reasons why it is considered a superior technology to the batteries currently used for electric vehicles. There are those who claim that they are the "holy grail" of batteries for electric vehicles.
3. Describe at least 3 potential benefits and 3 risks of the developed technology
4. Describe what would be the potential to produce (manufacture) this type of battery in Ecuador, if any.
5. Include the bibliography consulted, in an appropriate format.

Answers

1) The main Features of Solid-State Batteries are:

- Operation

- Composition

- Solid-State Designation

2) The reasons why we have a Superiority of Solid-State Batteries are:

- Energy Density

- Safety

- Faster Charging

3) The 3 potential benefits and risks are:

Potential Benefits:

- Improved Safety

- Longer Lifespan

- Environmental Friendliness

Potential Risks:

- Cost

- Manufacturing Challenges

- Limited Scalability

4) The potential for solid-state battery production in Ecuador would depend on various factors such as:
- access to the necessary raw materials.

- technological infrastructure.

- Research and development capabilities.

- Market demand.

5) Bibliography:

- Goodenough, J. B., & Park, K. S. (2013). The Li-ion rechargeable battery: A perspective. Journal of the American Chemical Society, 135(4), 1167-1176.

- Tarascon, J. M., & Armand, M. (2001). Issues and challenges facing rechargeable lithium batteries. Nature, 414(6861), 359-367.

- Janek, J., & Zeier, W. G. (2016). A solid future for battery development. Nature Energy, 1(7), 16141.

Manuel, J. (2021). Solid-state batteries: The next breakthrough in energy storage? Joule, 5(3), 539-542.

What are the benefits of Solid State Batteries?

1) The main Features of Solid-State Batteries are:

- Operation: Solid-state batteries are a type of battery that uses solid-state electrolytes instead of liquid or gel-based electrolytes used in traditional batteries. They operate by moving ions between the electrodes through the solid-state electrolyte, enabling the flow of electric current.

- Composition: Solid-state batteries are typically composed of solid-state electrolytes, cathodes, and anodes. The solid-state electrolyte acts as a medium for ion conduction, while the cathode and anode store and release ions during charge and discharge cycles.

- Solid-State Designation: They are called "solid-state" because the electrolytes used are in a solid state, as opposed to liquid or gel-based electrolytes in conventional batteries. This solid-state design offers advantages such as improved safety, higher energy density, and enhanced stability.

2) The reason why we have a Superiority of Solid-State Batteries is:

- Energy Density: Solid-state batteries have the potential to achieve higher energy density compared to conventional lithium-ion batteries. This means they can store more energy in a smaller and lighter package, leading to increased driving range for electric vehicles.

- Safety: Solid-state batteries are considered safer because they eliminate the need for flammable liquid electrolytes. This reduces the risk of thermal runaway and battery fires, addressing one of the key concerns with lithium-ion batteries.

- Faster Charging: Solid-state batteries have the potential for faster charging times due to their unique structure and improved conductivity. This would significantly reduce the time required to charge electric vehicles, enhancing their convenience and usability.

3) The 3 potential benefits and risks are:

Potential Benefits:

- Improved Safety: Solid-state batteries eliminate the risk of electrolyte leakage and thermal runaway, improving the overall safety of electric vehicles.

- Longer Lifespan: Solid-state batteries have the potential for longer cycle life, allowing for more charge and discharge cycles before degradation, leading to increased longevity.

- Environmental Friendliness: Solid-state batteries can be manufactured with environmentally friendly materials, reducing the reliance on rare earth elements and hazardous substances.

Potential Risks:

- Cost: Solid-state batteries are currently more expensive to produce compared to conventional lithium-ion batteries. This cost factor may affect their widespread adoption.

- Manufacturing Challenges: The large-scale production of solid-state batteries with consistent quality and high yields is still a challenge, requiring further research and development.

- Limited Scalability: The successful commercialization of solid-state batteries for electric vehicles on a large scale is yet to be achieved. Scaling up production and meeting the demand may pose challenges.

4) Potential for Battery Production in Ecuador:

The potential for solid-state battery production in Ecuador would depend on various factors such as:
- access to the necessary raw materials.

- technological infrastructure.

- Research and development capabilities.

- Market demand.

5) Bibliography:

- Goodenough, J. B., & Park, K. S. (2013). The Li-ion rechargeable battery: A perspective. Journal of the American Chemical Society, 135(4), 1167-1176.

- Tarascon, J. M., & Armand, M. (2001). Issues and challenges facing rechargeable lithium batteries. Nature, 414(6861), 359-367.

- Janek, J., & Zeier, W. G. (2016). A solid future for battery development. Nature Energy, 1(7), 16141.

Manuel, J. (2021). Solid-state batteries: The next breakthrough in energy storage? Joule, 5(3), 539-542.

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Q. How are you informed of what to do in the event of an on-site emergency?

Answers

Answer:

I don't know

Explanation:

sorry I am answering this for points

please follow and mark as brainliest for me I will also do same

Answer:

Adapting this case to a work environment, especifically an industry, there should be a security and health brigade in charge of response against emergencies within the organization. Said brigade has the duty of giving direction to all people that could be hurt in any way by a negative event caused by the emergency These directions are given orally in the case of emergencies. Also, emergency services personnel, such as police, firefighters, and paramedics, are certified professionals who have the responsibility of protecting people against harm, and this includes giving guidance during emergencies.

what skills and knowledge do you want to gain from electrical electronic engineering ? 1200 words

Answers

Information about the knowledge and abilities that students in electrical and electronic engineering typically seek.

Electrical and electronic engineers must have a solid grasp of circuit analysis and design. This involves understanding how circuit components like resistors, capacitors, and inductors interact with one another in various combinations. The ability to analyze and create electrical circuits using circuit theorems like Ohm's Law, Kirchhoff's rules, and Thevenin's theorem is also a part of this.

Electronics: Electrical and electronic engineers need to have a strong background in electronics, including transistors, amplifiers, diodes, and semiconductors. They should also be knowledgeable about many sorts of electronic circuits, including power supply, voltage regulators, and oscillators.

Engineers who work with semiconductors, diodes, transistors, amplifiers, and other electronic components are required to have a strong foundation in electronics. Additionally, they must to be knowledgeable with many kinds of electrical circuits, including power supply, voltage regulators, and oscillators.

Electrical and electronic engineers must to have a solid grasp of digital systems, including digital logic, binary integers, and Boolean algebra. In addition, they must to be knowledgeable about the various components of digital circuits, including gates, flip-flops, and multiplexers, and how to employ them in digital circuit design.

Electrical and electronic engineers must have a working knowledge of signals and systems in order to comprehend how signals behave and can be processed. Understanding different signal kinds falls beneath this.

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nozick's aim in discussing the experience machines is group of answer choices to describe a device that he predicts will soon be invented and widely used. to give an example of a machine that he thinks will be forever beyond our technological capabilities. to show that pleasure is the only thing desirable in itself. to create a thought experiment that sheds light on what we value in life.

Answers

The goal of Nozick's discussion of experience machines is c. to devise a thought experiment that elucidates what we value in life.

The Importance of Machines and Machine Making:

Man relies on machines for transportation, communication, and work, among other things. People with specialized knowledge in the application of scientific principles to problem solving design and develop machines.

Many of humanity's problems have been solved mechanically, chemically, and electronically by these engineers, scientists, and inventors. The benefits of the industrial revolution, such as unprecedented increases in agricultural outputs that have improved food security, are just a few of the positive wonders it has wrought.

They have also brought misery and oppression to many people through ingenious weapons of war, some of which have brought the world to its knees.

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The code produces an error when trying to retrieve the formContext object by using the getFormContext method.

Answers

Using the knowledge in computational language in JAVA it is possible to write a code that  produces an error when trying to retrieve the formContext object by using the getFormContext method.

Writting the code:

function commonEventHandler(executionContext) {

   var formContext = executionContext.getFormContext();    

   var telephoneAttr = formContext.data.entity.attributes.get('telephone1');

   var isNumberWithCountryCode = telephoneAttr.getValue().substring(0,1) === '+';

   // telephoneField will be a form control if invoked from a form OnChange event;

   // telephoneField will be a editable grid GridCell object if invoked from editable grid OnChange event.

   var telephoneField = telephoneAttr.controls.get(0);

   if (!isNumberWithCountryCode) {

       telephoneField.setNotification('Please include the country code beginning with '+'.', 'countryCodeNotification');

   }

   else {

       telephoneField.clearNotification('countryCodeNotification');

   }

}

function onstop(executionContext) {

   var formContext = executionContext.getFormContext();

   var stop = formContext.getAttribute("abs_onstop").getValue();

   if (stop == true)

   {

       formContext.ui.setFormNotification("This account has been placed ON STOP!", "WARNING", "OnStop");

   }

   else

   {

       formContext.ui.clearFormNotification("OnStop");

   }

}

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The code produces an error when trying to retrieve the formContext object by using the getFormContext

4. a. A family purchased a 3 acre piece of land in Limuru for Kshs.30,000,000.00 fifteen years ago. They planted trees at a cost of Kshs.250,000.00 per acre. Each year they have been spending on average Kshs.25,000.00 per acre per month to take care of the trees and also to secure the property. They are now considering selling it. What is the minimum amount they should accept so as not to incur a loss bearing in mind that comparable properties have been yielding a rate of 6.5% interest per annum? (8 marks)

b. “Compulsory acquisition is the power of government to acquire private rights in land for public good without the willing consent of the owner but; in exchange for compensation”. Discuss this statement with special reference to the main considerations that ought to be made in conducting a valuation for compulsory acquisition. (12 marks)

Answers

The family should accept a minimum of Kshs.42,250,000.00 to avoid incurring a loss.

Why should they accept this amount and why?

To obtain the total cost, the expenses for the land, trees and upkeep are summed up and subsequently reduced by 6. 5% using a discount rate.

Hence, it can be seen that a forced acquisition appraisal primarily focuses on three key factors: the land's market value, the expenses involved in replacing the property, and the potential harm caused to the owner's belongings.

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Tech A says that a faulty vacuum booster can affect engine operation. Tech b says that steal brake Ponce can be replaced with a copper line, as it easier to bend into shape. Who is correct ?

Answers

Answer:

Tech A

Explanation:

A faulty vacuum booster can actually affect the operation of an engine. Engine stalls when brakes are applied. And this can happen when the diaphragm that is inside the brake booster fails. The failing thus allows air to bypass the seal. When the brakes are then pressed, the engine will actually feel like it will stall, and the idle will most probably drop. Also, asides a reduction in the break performance quality, a stalling engine is very bad and can result to many negative effects.

Which factor has the most significant impact in design?
a.
architectural design
b.
climate
c.
function
d.
cost

Answers

D) cost


The fund available for a project is the first factor to be considered to ensure that the project comes to reality and serve it’s purpose

Answer:

Function

Explanation:

Plato

Increasing broadband connection speeds to Internet Service Providers (ISPs), is best described by _____'s Law.
a) Moore b) Metcalf
c) Nielsen
d) Bell

Answers

Metcalf's Law best describes the increase in broadband connection speeds to ISPs.

Metcalf's Law states that the value of a telecommunications network is proportional to the square of the number of connected users. In the context of broadband connection speeds, this means that as more users connect to the network, the overall value and capability of the network increases exponentially.

As more people access the internet and demand higher connection speeds, ISPs strive to meet this demand by upgrading their infrastructure, increasing bandwidth, and improving network technologies. This expansion and improvement in the network allow for faster and more reliable broadband connections, enabling users to access online content, stream media, and engage in various online activities with greater speed and efficiency.

The continuous advancement of broadband technology is driven by the need to accommodate the growing number of internet users and their increasing bandwidth requirements.

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Have you ever prototyped an idea? How did you do it?

Answers

Yes, I have prototyped an idea.

How to prototype an idea?

STEP-1 Create Your Ideas Now: Here are some initial steps you may take to speed up the idea-generation process. Conduct in-depth research Know the market value, potential rivals, manufacturing method, and overall cost of your goods.

STEP-2 Make a Simplified Version of Your Idea: Making a straightforward representation of your idea would be the next step after conducting considerable research and settling on an idea.

STEP-3 Make a Realistic Prototype: You actually start working on your prototype at this point.

STEP-4 Develop Your Prototype Until It Is Perfect: The hardest and longest phase of them all is this one.

Hence, the prototype of an idea is given.

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technician a says that reverse lamp switches are activated at the transmission/transaxle by the gearshift lever. technician b says that reverse lamp switches are activated by a sensor at the input shaft. who is correct?

Answers

Technician A is correct. Reverse lamp switches are typically activated by the gearshift lever at the transmission/transaxle. When the driver puts the vehicle in reverse gear, the gearshift lever moves a rod or cable that activates the switch, which then sends a signal to turn on the reverse lights.

Technician B is incorrect, as there is no sensor at the input shaft that is used to activate reverse lamps. While there may be sensors at the input shaft for other purposes (such as determining engine speed), they are not related to the operation of the reverse lights.

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A spherical ball of solid, nonporous naphthalene, a "moth ball," is suspended in still air. The naphthalene ball slowly sublimes, releasing the naphthalene into the surrounding air by a diffusion limited process.
1. Estimate the time required to reduce the diameter from 2 cm to 0.5 cm. when the surrounding air is at 347 K and 1.013 x 10^5 Pa. Naphthalene has a molecular weight of 128 g/mole, a solid density of 1.145 g/cm^3, a diffusion coefficient in air of 8.19 x 10^-6 m^2/s, and exerts a vapor pressure of 5 torr (670 Pa) at 347 K.

Answers

Answer:

61.6 hours will be needed to reduce the diameter of solid spherical ball from 2 cm to 0.50 cm.

Explanation:

Find the given attachments

A spherical ball of solid, nonporous naphthalene, a "moth ball," is suspended in still air. The naphthalene
A spherical ball of solid, nonporous naphthalene, a "moth ball," is suspended in still air. The naphthalene
A spherical ball of solid, nonporous naphthalene, a "moth ball," is suspended in still air. The naphthalene

1) I love to swim. 2) A few years ago, my new year's resolution was to become a faster swimmer. 3) First, I started eating better to improve my overall health. 4) Then, I created a training program and started swimming five days a week. 5) I went to the pool at my local gym. 6) To measure my improvement, I tried to count my laps as I was swimming, but I always got distracted and lost track! 7) It made it very hard for me to know if I was getting faster. 8) This is a common experience for swimmers everywhere. 9) We need a wearable device to count laps, calories burned, and other real-time data. Summarey of the story

Answers

Do you think you could help me on my latest question

If you are working with an extension ladder that has 15 rungs in each of the two sliding sections, this
is a__ -foot extension ladder.

Answers

If you are working with an extension ladder that has 15 rungs in each of the two sliding sections, this is a 30-foot extension ladder. It can be easily estimated by adding both lengths.

What is an extension ladder?

An extension ladder refers to a portable ladder that can be adjusted in its length and easily managed by the operator.

An extension ladder is very useful to climb up and/or down, thereby this tool should have vertical supports along its whole length in order to avoid accidents.

This type of ladder (extension ladder) may have different sections in order to reach a specific length during work.

Learn more about extension ladders here:

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