FILL IN THE BLANK. The amplitude of the sinusoidal symmetrical ac component of the three-phase short-circuit current of an unloaded synchronous machine decreases from a high initial value to a lower steady-state value, going through the stages of _____ and _____ periods.

An example of a feedback control system is the human actions required to steer an automobile.

Positive feedback and negative feedback are the two basic categories of feedback control systems.

In a control system with positive feedback, the set point and output values are added. A negative feedback control subtracts the set point and output values.

The goal of the driver is to maintain the car in the middle of a selected lane of the road. The driver adjusts for changes in the direction of the road by twisting the steering wheel.

Therefore, the example of a feedback control system is the human actions required to steer an automobile.

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The structural changes that take place when a plain carbon eutectoid steel is slowly cooled from the austenite region to room temperature include the formation of pearlite and carbide precipitation.

During the gradual cooling phase, the austenite phase undergoes a pivotal metamorphosis known as eutectoid transformation. This remarkable transformation engenders two distinct phases - ferrite and cementite - through the progressive decomposition of austenite.

Simultaneously, the slow cooling process permits the precipitation of excess carbon present within the steel. This surplus carbon, owing to its inability to be fully consumed during the transformation, manifests as minute cementite particles dispersed throughout the microstructure.

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In the case of Colonial Movers, involving employees in the development of the new information system is crucial. Their role should be to provide valuable insights, feedback, and requirements based on their knowledge and experience.

The focus of system requirements should include functional, performance, usability, and security aspects. Conducting Joint Application Design (JAD) sessions with a detailed plan can facilitate effective collaboration. Fact-finding methods such as interviews, surveys, and observation can be used to collect information from employees, each with its own pros and cons. In the development of the new information system for Colonial Movers, it is important to involve employees to ensure their perspectives and requirements are considered. Employees can play a valuable role in providing insights into the day-to-day operations, identifying pain points, and suggesting improvements. Their involvement can lead to a system that meets their needs and enhances their productivity. Their role may involve participating in requirements-gathering sessions, providing feedback on prototypes or system demonstrations, and participating in user acceptance testing.

The system requirements for the new information system should focus on different aspects. Functional requirements define what the system should do, such as managing customer data, scheduling moves, and generating invoices. Performance requirements address system speed and response times. Usability requirements ensure the system is user-friendly and intuitive. Security requirements focus on protecting sensitive data and preventing unauthorized access.

To conduct JAD sessions, a memo can be prepared for the participants outlining the objectives, agenda, and expected outcomes. The plan should include setting clear goals, identifying key participants, providing pre-session materials, facilitating group discussions, and documenting the results. This collaborative approach can help gather diverse perspectives and ensure that the new system meets the needs of both companies.

For fact-finding, various methods can be used. Interviews allow direct interaction with employees to gather detailed information, but they can be time-consuming and may not capture the full range of perspectives. Surveys can reach a larger audience and provide quantitative data, but they may lack depth and personal insights. Observation involves observing employees' tasks and processes in their work environment, providing valuable context but may be influenced by observer bias. Choosing a combination of these methods can provide a more comprehensive understanding of the employees' requirements and challenges.

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It is true that the ancient Romans perfected this style of arch and frequently employed it in their construction.

Which architectural design was inspired by Roman architecture?

The architecture of Rome served as the inspiration for this type of stately mansion. Gothic style included this style of arch to aid in guiding devotees' sight skyward.

How did the Romans make use of the archway configuration?

Roman builders of both residential as well as commercial alike frequently employed the arch design. Around 700 BC, the Etruscans are thought to have given the idea of arches to the ancient Romans. Certain aspects of Greek architecture were also incorporated by the ancient Cultures into their own built environment.

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To develop a closed-form equation for the velocity of the ice sphere as a function of time, we need to consider the forces acting on the sphere: drag force and melting rate.

1. Drag force:

Using the Stokes equation, the drag force can be expressed as:

f_drag = 6πηru

2. Melting rate:

The melting rate of the ice sphere can be given as:

dm/dt = -cA

3. Equation of motion:

Applying Newton's second law, we have:

m(dv/dt) = -f_drag

Since the mass (m) of the ice sphere is changing due to melting, we can express it as:

m = (4/3)πr^3ρ

where ρ is the density of the ice sphere.

Combining the above equations, we get:

(4/3)πr^3ρ(dv/dt) = -6πηru - cA

Simplifying the equation and solving for dv/dt, we obtain:

dv/dt = (-6η/ρr)u - (3cA)/(4πr^3ρ)

This is a first-order linear ordinary differential equation (ODE) that describes the velocity (v) as a function of time (t) for the melting ice sphere in a fluid medium.

Note: Solving this ODE would require initial conditions and integration techniques based on the specific problem parameters and assumptions. The resulting closed-form equation for velocity as a function of time would depend on the specific values of η, ρ, r, c, A, u0, and r0.

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The area of the gutter is therefore equal to the area of the rectangle plus the area of the triangles.

A = rectangle + 2 * triangle

= 10h + 2 * (1/2 hw)

Using trig work out h and w.

h = 10 sin ?

w = 10 cos ?

A = 10h + hw

= 100sin? + 100sin?cos?

Differentiate the expression (either use the product rule for sin? cos?, or write 100sin?cos? as 50sin2? using the double angle formula)

A = 100sin? + 50sin2?

dA/dt = 100cos? + 100cos2?

For A to be a max or min the derivative must equal zero

100cos? + 100cos2? = 0

cos? + cos2? = 0

Use the double angle formula to write cos2? as 2cos^2 ? - 1

cos? + 2cos^2 ? - 1 = 0

2cos^2 ? + cos? - 1 = 0

This quadratic factorizes:

(2cos? - 1)(cos? + 1) = 0

This means that

cos ? = 1/2 or cos ? = 1

giving:

? = pi/3 or ? = pi

Which means that to achieve the maximum area ? should be pi/3 = 60 degrees

You can check that this is the max by substituting in these values of theta and the two end points (theta = 0, theta = pi), and seeing that pi/3 gives the maximum.

The maximum area is therefore

A = 100sin? + 100sin?cos?

= 100sin(pi/3) + 100sin(pi/3)cos(pi/3)

= 100 sqrt(3) / 2 + 100 sqrt(3)/2 * 1/2

= 100 * 3/2 * sqrt(3) / 2

= 3 * 25 * sqrt(3)

= 75 sqrt(3)

= 129.9...

= 130 cm^3

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Answer:

The main use of a timeline in engineering is for project management, product development, and historical analysis. It helps engineers to plan and track progress, ensure requirements are met, and understand the context and history of their field.

Answer:

545454cm

Explanation:

The blue print drawing of the house shows 666 centimeters, but the real picture of the house is 333 meters. So let the number of cm on the blueprint that represent the distance of 272727 meters be x. Firstly convert the meters to centimeters 666cm = 333m, x=272727m ; then cross multiply, 666cm=33300cm x=27272700cm ; x =(666cm×272727cm)/33300cm =545454cm.

Answer:

a la 1/s^2(s + 10)

Explanation:

I got it right on math lab

A data set might follow a variety of non-normal distributions, depending on the nature of the process, the technique of data collection, the sample size, outliers in the data, etc. Below is a list of some of the most significant non-normal distributions; Alpha Distribution Exponential

Several tests, including the t-test, ANOVA, Regression, and DOE, are unaffected by the assumption of normality.

Since no attribute (such as height, weight, etc.) will have a perfectly normal distribution, non-normality is a fact of existence. Using a transformation is one way to make non-normal data resemble regular data.

Therefore, The non-normal data can be analysed in two different ways. Use non-parametric tests, which don't make any assumptions about normality, or convert the data with the right function to make it follow a normal distribution.

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Answer:

technician a is correct

Explanation:

a live axle is an axle that gives out power or torque. a dead axle is an axle that supports the wheels, thus technician a is correct.

hope this helps

its a tricky one, wouldnt be surprised if i was wrong.

Answer:

its c

Explanation:

Answer:

The velocity at section is approximately 42.2 m/s

Explanation:

For the water flowing through the pipe, we have;

The pressure at section (1), P₁ = 300 kPa

The pressure at section (2), P₂ = 100 kPa

The diameter at section (1), D₁ = 0.1 m

The height of section (1) above section (2), D₂ = 50 m

The velocity at section (1), v₁ = 20 m/s

Let 'v₂' represent the velocity at section (2)

According to Bernoulli's equation, we have;

\(z_1 + \dfrac{P_1}{\rho \cdot g} + \dfrac{v^2_1}{2 \cdot g} = z_2 + \dfrac{P_2}{\rho \cdot g} + \dfrac{v^2_2}{2 \cdot g}\)

Where;

ρ = The density of water = 997 kg/m³

g = The acceleration due to gravity = 9.8 m/s²

z₁ = 50 m

z₂ = The reference = 0 m

By plugging in the values, we have;

\(50 \, m + \dfrac{300 \ kPa}{997 \, kg/m^3 \times 9.8 \, m/s^2} + \dfrac{(20 \, m/s)^2}{2 \times 9.8 \, m/s^2} = \dfrac{100 \ kPa}{997 \, kg/m^3 \times 9.8 \, m/s^2} + \dfrac{v_2^2}{2 \times 9.8 \, m/s^2}\)50 m + 30.704358 m + 20.4081633 m = 10.234786 m + \(\dfrac{v_2^2}{2 \times 9.8 \, m/s^2}\)

50 m + 30.704358 m + 20.4081633 m - 10.234786 m = \(\dfrac{v_2^2}{2 \times 9.8 \, m/s^2}\)

90.8777353 m = \(\dfrac{v_2^2}{2 \times 9.8 \, m/s^2}\)

v₂² = 2 × 9.8 m/s² × 90.8777353 m

v₂² = 1,781.20361 m²/s²

v₂ = √(1,781.20361 m²/s²) ≈ 42.204308 m/s

The velocity at section (2), v₂ ≈ 42.2 m/s

Answer:

Option B

Explanation:

Atoms of ferromagnetic materials have north and south pole but these atoms are oriented in random directions due to which they do no exhibit magnetic properties until unless they are brought into influence of any external temporary or permanent magnetic field.

Under the influence of external magnetic force, the atoms of the ferromagnetic material get oriented in a particular direction.

Hence, option B is correct

Answer: jay is traveling at 4 miles per hour :)

Explanation:

The missing term in the presented paragraph is environmental.

In recent years the effects of climate change have been strongly manifested around the world causing:

Therefore, many companies have begun to investigate productive alternatives to reduce their environmental impact. In the case of the car industry, companies have deepened their research on other sources of energy such as:

One of them is Toyota, the Japanese brand that has developed cars that work hybrid, that is, with gasoline and electric power. This will reduce the emissions of CO2 and other harmful gases into the atmosphere.

Therefore, it is possible to infer that the missing term in the paragraph is Environmental.

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In summary, the XYZ Company will require:

(a) 705 processing and assembly operations,

(b) 710 workers (direct labor only), and

(c) 25,738 m2 of total floor space for the new plant.

To calculate the required processing and assembly operations, workers, and total floor space for the new factory, we can break down the problem into smaller parts and analyze each element.

(a) Processing and assembly operations:

Number of components made in the factory: 250 components * 35% = 87.5 (round up to 88 components)

Processing operations for components: 88 components * 8 processing operations = 704 processing operations

Assembly operations for final product: 1 assembly operation (as each product is assembled in one workstation)

Total operations = 704 processing operations + 1 assembly operation = 705 operations

(b) Number of workers (direct labor only):

Processing workers: 704 processing operations / 1 (one worker per work cell) = 704 workers

Assembly workers: 13 models * 1000 units/model = 13,000 units/year

Assembly time per unit: 48 min/unit = 0.8 hr/unit

Assembly time for all products: 13,000 units * 0.8 hr/unit = 10,400 hr

Assembly workers required: 10,400 hr / 2,000 hr/shift = 5.2 (round up to 6 workers)

Total workers = 704 processing workers + 6 assembly workers = 710 workers

(c) Total floor space required:

Processing floor space: 704 work cells * 25 m2/cell = 17,600 m2

Assembly floor space: 6 workstations * 25 m2/station = 150 m2

Total production area: 17,600 m2 + 150 m2 = 17,750 m2

Additional allowance (45%): 17,750 m2 * 45% = 7,987.5 m2

Total floor space = 17,750 m2 + 7,987.5 m2 = 25,737.5 m2 (round to 25,738 m2)

In summary, the XYZ Company will require:

(a) 705 processing and assembly operations,

(b) 710 workers (direct labor only), and

(c) 25,738 m2 of total floor space for the new plant.

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Answer:

transmitter hope thus helped!

Explanation:

Raceway is the answer

"A raceway is an enclosed conduit that forms a physical pathway for electrical wiring."

Answer:

A) F = 0.011 N

B) ΔP = 5.6 N/m²

Explanation:

We are given;

surface tension coefficient; S = 0.07 N/m

Radius; r = 2.5 mm = 0.025 m

A) Formula to find the surface tension force(F) is given by;

F = SL

Where L is effective length = 2πr

F = 0.07 × 2π × 0.025

F = 0.011 N

B) Formula for difference in pressure droplet is;

ΔP = 2S/r

Thus;

ΔP = (2 × 0.07)/0.025

ΔP = 5.6 N/m²

Answer: Most master’s degree programs will take an average of two years from start to finish – about half of the time it takes to earn your bachelor’s degree. While bachelor’s degree programs involve many introductory and general education courses, a master’s degree curriculum is all about the subject area you selected to study.

Explanation: Hope this was helpful

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

Answer:

PEER establishes clear performance metrics, it serves consumer needs, and it covers all aspects of energy system performance.

Explanation:

on edg. just did it

These four characteristics, as outlined by Hollnagel (2010), are critical in developing resilient systems that can cope with unexpected situations and adverse external events. Software engineers must educate system developers about these characteristics to develop more resilient systems.

Resilience engineering is about developing adaptable systems that can handle unexpected situations and are able to cope with the effects of adverse external events that might cause system failure. As a software engineer, you need to inform system developers about the following four characteristics that reflect the resilience of an organization, as described by Hollnagel (2010):Maintainability: This characteristic reflects the degree to which a system can be maintained or repaired after it has been damaged. In other words, it assesses the system's ability to remain in good working order or quickly recover from damage. An example of maintainability would be the ability to quickly repair an engine that has been damaged during an accident.Flexibility: This characteristic reflects the degree to which a system can be modified or adapted to cope with changing circumstances. Flexibility is essential for resilience because it enables a system to respond to new challenges and adapt to different circumstances. An example of flexibility would be the ability to change the specifications of a car to adapt to different driving conditions.Redundancy: This characteristic reflects the degree to which a system can continue to function even if some of its components fail. Redundancy is important because it ensures that the system can continue to operate even if one or more components are not working properly. An example of redundancy would be having a backup generator in case the primary generator fails.Responsiveness: This characteristic reflects the degree to which a system can respond to changing circumstances or threats. Responsiveness is important because it enables a system to quickly and effectively respond to unexpected events. An example of responsiveness would be the ability of an air traffic control system to quickly respond to changing weather conditions to ensure the safety of airplanes in the area.

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The exclusion of some traditional partners from the "democratic camp" by the United States will undoubtedly deepen the gap between the two sides.

About summit :

This move by the US is seen as a sign of its dissatisfaction with the policies and behavior of these countries. In addition, the invitation of some countries or regions suspected of "democratic retrogression" may lead to further erosion of the credibility of the summit in the eyes of the invited countries, as well as the international community. At the same time, it is worth noting that the United States must consider the consequences of such actions and the possible damage to its international image. If the US is seen as selectively choosing partners, it may undermine its overall influence in the world.

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Answer:

Can't help

Explanation:

Answer:

Cpk = 1.33

Explanation:

Given:

Mean = 50

Sd = 2

USL = 60

LSL = 42

The Cpk means process capability index. it helps decide the specification limit when the nominal value is not the central value of upoer specification limint (USL) and lower specification limit (LSL).

The Cpk can be derived using the formula:

\(Cpk = min [\frac{(usl - mean)}{3 * \sigma}, \frac{(mean - lsl)}{3*\sigma}] \)

\(Cpk = min [\frac{(60 - 50)}{3*2} , \frac{(50 - 42)}{3*2}] \)

Solving further,

\(Cpk = min [\frac{10}{6} , \frac{8}{6}] \)

Cpk = min ( 1.67 , 1.33)

Cpk = 1.33

Cpk = 1.33

Answer:

kindly check the explanation section.

Explanation:

The word ''sprawl'' as it is related to people and population simply means an irregular expansion and the word ''urban'' simply means a city. So, putting both together as "urban sprawl" simply means an irregular expansion of cities or town.

Urban sprawl is majorly caused by race and land and the characteristics of urban sprawls are: [1]. there is High dependency on automobiles, [2]. the development is dispersed, and [3]. there is low density.

To determine the type of the element with the given voltage and current functions, v(t) = 200 sin(200t + 30°) V and i(t) = 2 cos(200t - 30°) A, we should analyze the phase relationship between the voltage and current.

Step 1: Identify the phase angles of the voltage and current functions
Voltage: v(t) = 200 sin(200t + 30°)
Phase angle for voltage: 30°

Current: i(t) = 2 cos(200t - 30°)
Phase angle for current: -30°

Step 2: Calculate the phase difference
Phase difference = Phase angle for voltage - Phase angle for current
Phase difference = 30° - (-30°)
Phase difference = 60°

Step 3: Determine the type of the element based on the phase difference
- If the phase difference is 0°, the element is a resistance.
- If the phase difference is +90°, the element is a capacitance.
- If the phase difference is -90°, the element is an inductance.

Since the phase difference is 60°, which does not exactly match any of the above cases, the given element is a combination of different types of elements (e.g., a resistor and capacitor or a resistor and inductor). However, as it is closer to +90°, the dominant type of the element is likely a capacitance.

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