Fracture is a direct result of crack propagation in a material. option d
When a crack is present in a material, it acts as a stress concentrator, causing stress to be concentrated at the tip of the crack.
This can lead to the propagation of the crack, resulting in fracture of the material. Fracture can occur in different ways, depending on the material and the conditions under which it is loaded.
For example, in ductile materials, fracture can occur through ductile tearing or shear deformation, while in brittle materials, fracture occurs by rapid crack propagation without significant plastic deformation.
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Identify a topology used by traditional mainframe networks.Select one:a. A star topologyb. A ring topologyc. A hierarchical topologyd. A mesh topology
A hierarchical topology is organized in a tree-like structure with a central mainframe computer connected to various lower-level computers, which in turn are connected to even lower-level devices. This structure allows for efficient management and communication within the network.
The topology used by traditional mainframe networks is typically a hierarchical topology. This topology features a central mainframe system with smaller subsystems branching off of it. This allows for content to be loaded and distributed efficiently throughout the network. It is a star network in which the primary networking device is connected to an additional networking device. As a tree-like convergent system with multiple inflow points (sources) and one outlet (sink), a network cable typically connects to one switch before connecting to several others. it t is utilized for the most part in circumstances where explores dealing with projects need to share their outcomes to additional exploration by making it promptly accessible for a joint effort.
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The topology used by traditional mainframe networks is a hierarchical topology.
In this topology, the mainframe computer is located at the top of the hierarchy, with other devices such as terminals and printers connected to it in a tree-like structure. The hierarchical topology allows for centralized control and management of the network, which is important in mainframe environments where data security and reliability are crucial. Traditional mainframe networks typically use a hierarchical topology. This topology consists of a central mainframe computer connected to various devices in a hierarchical structure, with each level connected to the level above it.
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A coil of wire is oriented such that its axis points due North, and a compass is placed at the center of the coil. How much current would need to run through the coil to deflect the compass needle by 15 degrees?
1 A
10 A
100 A
To deflect the compass needle by 15 degrees, the current required depends on the specific coil parameters (number of turns, radius, etc.). The given options (1 A, 10 A, 100 A) cannot be accurately determined without these details.
To calculate the current needed to deflect a compass needle by 15 degrees, one must know the coil's parameters, such as the number of turns, radius, and the distance between the coil and the compass.
By using Ampere's law and considering the Earth's magnetic field, one can create an equation that relates the current, coil parameters, and magnetic field. However, without these parameters, it's impossible to determine the exact current needed to cause a 15-degree deflection from the given options of 1 A, 10 A, or 100 A.
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Which type of hazard do cranes ladders scaffolds backhoes and paint rollers all present at a worksite?
Cranes, ladders, scaffolds, backhoes, and paint rollers present a fall hazard at a worksite.
These types of equipment are used to perform tasks at elevated heights, making workers more susceptible to falls. Falls can occur when there is a lack of proper safety measures, such as guardrails, fall arrest systems, or secure ladder placements.
Additionally, accidents may result from using damaged or faulty equipment, inadequate worker training, or poor worksite conditions. To prevent fall hazards, employers should follow safety guidelines, provide necessary training, and regularly inspect equipment to ensure a safe working environment.
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Cranes, ladders, scaffolds, backhoes, and paint rollers all present fall hazards at a worksite since they are used at elevated levels.
Explanation:The type of hazards that cranes, ladders, scaffolds, backhoes, and paint rollers all present at a worksite are primarily fall hazards. These tools and machines are all used at elevated levels, which pose a risk of a fall. Construction workers operating cranes and backhoes must work at great heights. Ladder use always contains the possibility of falling if not properly balanced or secured. Scaffolds and paint rollers can also lead to height-related accidents if safety precautions are not strictly followed.
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what happens to the beeping sound made by the sonar system when the vehicle gets closer to an obstacle?
Answer: When the sonar system in a vehicle detects an obstacle, it emits a high-frequency sound wave that bounces off the obstacle and returns to the sonar system. The system then calculates the time it took for the sound wave to return and the distance to the obstacle. As the vehicle gets closer to the obstacle, the time it takes for the sound wave to return becomes shorter, and the sonar system emits a beeping sound that increases in frequency or volume to alert the driver of the increasing proximity to the obstacle. This allows the driver to take appropriate action to avoid a collision.
When the sonar system detects an obstacle, it emits a beeping sound at a certain frequency. As the vehicle gets closer to the obstacle, the beeping sound becomes more frequent and faster.
This is because the sonar system is detecting that the vehicle is approaching the obstacle and the distance between them is decreasing.
The frequency of the beeping sound is proportional to the distance between the vehicle and the obstacle, so as the distance decreases, the frequency increases.
Once the vehicle gets too close to the obstacle, the beeping sound may become a constant tone to indicate the vehicle is in danger of colliding with the obstacle.
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when is the creep rate constant? when is the creep rate constant? in the tertiary creep regime. never. in the primary creep regime. in the steady state creep regime. in the elastic strain regime.
The creep rate is constant in the steady state creep regime. Option d is answer.
In the steady state creep regime, the creep rate remains constant over time, indicating that the rate of deformation is balanced by the rate of recovery. This is also known as the secondary creep regime. In contrast, the creep rate increases over time in the primary and tertiary creep regimes. In the elastic strain regime, there is no permanent deformation, and therefore no creep.
Overall, understanding the different creep regimes is important in designing materials and structures that can withstand long-term loading at high temperatures and stresses.
Option d is answer.
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In a Pahl and Beitz evaluation one of the Criteria has a Weighting Factor (W) = 0.20 and a Numerical Vlaue (NV) = 3. What is the Weighted Value for this Criteria?
a. 3
b. 3.2
c. 0.2
d. 15
e. 0.6
The answer is option e. 0.6
In a Pahl and Beitz evaluation, the Weighted Value (WV) for a criterion can be calculated using the formula:
Weighted Value (WV) = Weighting Factor (W) × Numerical Value (NV).
In this case, the Weighting Factor (W) is 0.20, and the Numerical Value (NV) is 3.
Use the formula WV = W × NV.
Weighted Value: WV = 0.20 × 3 = 0.6.
So, the Weighted Value for this criterion is 0.6, making the correct answer choice (e).
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The sum of all currents entering and exiting a node is sometimes zero.
a. True
b. False
TRUE
This observation about currents in a node is nicely captured in general form as Kirchhoff's Current Law, The sum of all currents flowing into a node is zero. The index n counts the branches attached to the node.
Technical Jargon: Pigging is a method of cleaning what?
Pigging is a method of cleaning pipelines, specifically in industries such as oil, gas, and petrochemicals.
The process involves inserting a device called a "pig" into the pipeline. This pig, which can be made of foam, rubber, or other materials, moves through the pipeline, propelled by the product flow. As the pig travels, it effectively removes debris, buildup, and contaminants from the pipeline's interior walls. This method of cleaning ensures the smooth and efficient flow of products, reduces the risk of blockages, and maintains the overall integrity of the pipeline system.
In summary, pigging is a technique used to clean pipelines in various industries, utilizing a device called a pig to clear and maintain the internal structure of the pipeline.
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what factors does the resistance offered by a piece of conductor depend upon?
The resistance offered by a conductor depends on its length, cross-sectional area, material, and temperature.
1. Length: Resistance is directly proportional to the length of the conductor. As length increases, the resistance increases, because electrons face more obstacles while passing through the conductor.
2. Cross-sectional area: Resistance is inversely proportional to the conductor's cross-sectional area. A larger area allows more electrons to flow through, reducing resistance.
3. Material: Different materials have different resistivities, affecting resistance. Materials with low resistivity, like copper and silver, are good conductors, while those with high resistivity, like rubber, are insulators.
4. Temperature: As temperature increases, so does resistance in most conductors, because increased thermal energy leads to greater atomic vibrations, which impede electron flow.
These factors influence the ease with which electrons can flow through the conductor, ultimately affecting its resistance.
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Flow rate in a mechanical system is the analogue of voltage in an electrical system.
a. True
b. False
Answer:
False.
Explanation:
Flow rate is analogous to current; voltage is analogous to potential energy difference in electrical systems.
what term defines the conductors and equipment required to deliver energy from the electric supply source to the wiring system of the premises?
The term that defines the conductors and equipment required to deliver energy from the electric supply source to the wiring system of the premises is "Service Equipment."
Service equipment involves components like service conductors, service entrance conductors, and service disconnecting means. These elements work together to transfer electrical energy safely from the supply source to a building's electrical wiring system.
The service entrance conductors carry electricity from the utility lines, while the service conductors distribute power to the building's main distribution panel. The service disconnecting means provides a way to disconnect the electrical supply for maintenance or emergencies. Together, these components ensure a safe and efficient energy delivery process.
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f A is true, B is true and C is false does the following statement evaluate to true or false
Not(A and B or C)
Group of answer choices
True
False
The statement would evaluate to False.
First, let's evaluate the expression inside the parentheses:
(A and B) is true because both A and B are true.
(A and B) or C is also true because at least one of the expressions is true.
Now let's negate the entire expression with Not:
Not((A and B) or C) would be false because the original expression is true.
So the overall statement would be False.
In 1963 the Institute of Radio Engineers and the American Institute of Electrical Engineers merge to
form
a. National Electrical Contractors Association (NECA)
b. National Academy of Engineering (NAE)
c. International Brotherhood of Electrical Workers (IBEW)
d. Institute of Electrical and Electronics Engineers (IEEE)
In 1963 the Institute of Radio Engineers and the American Institute of Electrical Engineers merge to D. Institute of Electrical and Electronics Engineers (IEEE)
How was this done?The Institute of Electrical and Electronics Engineers was created in 1963 by the Union of the Institute of Radio Engineers (IRE) and the American Institute of Electrical Engineers (AIEE) (IEEE).
Hence, it can be seen that the two organizations were merged with the intention of forging a stronger, more cohesive professional association for electrical and electronics engineers.
With over 400,000 members in more than 160 countries, the IEEE is the biggest technical professional organization in the world today and is committed to promoting technology for the benefit of humanity.
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The accompanying figure shows a rectangular coil consisting of 40 closely spaced turns that has a resistance of 7.0 Ω. The magnetic field at all points inside the coil varies according to B = B0e−t, where B0 = 0.80 T and = 200 s−1. What is the current induced in the coil (in A) at the following times? (Enter the magnitudes.)
(a)0.001 s
(b) 0.002 s
(c) 2.0 s
the color property is inherited by all text elements except links (the a element)
That is correct.
Color inheritance works for all text elements except <a> links by default.
So these would inherit their color:
<h1> <p> <span> etc...
But <a> links will not.
You can, of course, explicitly set a color on <a> links if you wanted to. Inheritance just doesn't happen automatically for those elements.
This is by design, to leave <a> links unstyled by default, so they can indicate navigability clearly. But you're free to style them like any other element.
A cylindrical 2014-T6 aluminum alloy bar is subjected to compression-tension stress cycling along its axis; results of these tests are shown in below. If the var diameter is 12.0 mm, calculate the maximum allowable load amplitude (in N) to ensure that fatigue failure will not occur at 10^7 cycles, Assume a factor of safety of 3.0, data in Figure below were taken for reversed axial tension-compression tests, and that S is stress amplitude.
The maximum allowable load amplitude is 6403.33 N
How to find the maximum allowable load?The parameters given are:
Diameter of the bar, d = 12 mm
Thus:
d = 0.012 m
Cross sectional area of the bar is given by the formula:
A = πd²/4
A = π*0.012²/4
A = 0.000113 m²
From the Maximum stress versus logarithm of the number of cycles to fatigue failure for 2014-T6 Aluminium bar attached to this solution;
At 10⁷ cycles, Maximum stress, S = 170 MPa
S = 170 * 10⁶ Pa
Factor of safety, N = 3.0
The tensile stress is given by the formula:
σ = S/N
σ = (170 * 10⁶)/3
σ = 56.67 * 10⁶ N/m²
The tensile stress is also given by the formula:
σ = F/A
σ = F/0.000113
F/0.000113 = 56.67 * 10⁶
F = 56.67 * 10⁶ * 0.000113
F = 6403.33 N
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what model dtmf microphone is included with the yaesu ftm-300dr?
The model of the DTMF microphone included with the Yaesu FTM-300DR is the MH-48A6JA. This microphone features a keypad for DTMF operations and various functions.
The MH-48A6JA DTMF microphone is designed specifically for the Yaesu FTM-300DR dual-band mobile radio. It enables users to perform DTMF (Dual-Tone Multi-Frequency) operations, which allow for easy control of repeaters and other functions using tone signaling. The microphone has a built-in keypad for inputting DTMF codes and controlling the radio's functions, such as volume and frequency adjustments.
It also has a backlit design for easy visibility in low-light conditions. The ergonomic design and high-quality construction of the MH-48A6JA microphone ensure durability and ease of use for radio operators. The inclusion of this microphone with the Yaesu FTM-300DR enhances the overall functionality and user experience of the radio system.
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Determine the Fourier series coefficients for each of the following discrete-time peri- odic signals. Plot the magnitude and phase of each set of coefficients ak using MATLAB.
Answer:
As there are no specific signals given in the question, I will provide the general approach to find the Fourier series coefficients for a discrete-time periodic signal.
Suppose we have a discrete-time periodic signal x[n] with period N. Its Fourier series coefficients can be calculated using the following formula:
ak = (1/N) * sum(x[n] * exp(-j2pikn/N)), for k = 0,1,2,...,N-1
where j is the imaginary unit, and * denotes complex conjugation.
To plot the magnitude and phase of each set of coefficients using MATLAB, we can use the following commands:
Ak = abs(ak); % magnitude of coefficients
theta_k = angle(ak); % phase of coefficients
figure; % create new figure
stem(Ak); % plot magnitude
xlabel('k'); ylabel('|Ak|');
figure; % create new figure
stem(theta_k); % plot phase
xlabel('k'); ylabel('theta_k (radians)');
These commands will generate two separate plots, one for the magnitude and one for the phase, with k on the x-axis and |Ak| or theta_k on the y-axis.
Explain one way the students can adjust the track to increase the marble's potential energy. In your explanation,
describe the dimensions of any materials used to adjust the track and
explain why the adjustment to the track would increase the marble's potential energy.
A way that students can shift or adjust the track to make higher the marble's potential energy is by adding a loop to the track.
What is the adjustment?Note that A loop is seen as a section of the track that is said to be shaped like a circle, and this is said to be the marble travels via it while it is said to be still rolling on the track.
Therefore, for a person to add a loop to the track, the students is one that has to use a piece of material that the person can be able to be bent into a circular shape, and its example is the use of as a flexible plastic tube or a metal wire.
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the shampoo we made in this experiment is a solid or dry form. what are some advantages of dry shampoo over liquid shampoo? explain.
Dry shampoo has several advantages over liquid shampoo is: it is easy to use as it does not require any water, making it a convenient option for those who are short on time or do not have access to water.
Secondly, it is travel-friendly and can be carried in a small container without the risk of spillage. Thirdly, it is known to absorb excess oil and sweat from the scalp, leaving hair feeling fresh and clean. Lastly, it can help to extend the time between hair washes, reducing the frequency of hair damage caused by frequent washing and styling. Overall, dry shampoo is a great option for people looking for a quick and convenient solution to keep their hair clean and fresh.
For example, someone who is camping or traveling may not have access to a shower or running water, but can still use dry shampoo to refresh their hair. Additionally, using dry shampoo can save time in the morning when getting ready for work or school, as there is no need to wet hair and then wait for it to dry before applying shampoo.
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what is another term for the type of login credentials provided by a token device
Another term for the type of login credentials provided by a token device is "one-time password" or "OTP."
A security token is a physical or digital device that provides two-factor authentication (2FA) for a user to prove their identity in a login process. Another term for the type of login credentials provided by a token device is "one-time password" or "OTP." This refers to a unique, temporary code generated by the token device that users input for authentication during the login process.
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Another term for the type of login credentials provided by a token device is two-factor authentication (2FA). This is a security process in which the user is required to provide two forms of identification to access a system or application.
The first factor is typically a password or PIN, while the second factor is provided by the token device, which generates a unique code that must be entered within a specific timeframe. This method of authentication provides an extra layer of security compared to traditional single-factor authentication methods, as it makes it more difficult for unauthorized users to gain access to sensitive information or systems. 2FA is becoming increasingly popular in industries that handle sensitive data, such as finance, healthcare, and government, to prevent data breaches and protect sensitive information.
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You obtain beta estimates of general electric from two different online sources and you are surprised to find that they are so different. Which would not be a correct explanation for the difference?
If you obtain beta estimates of General Electric from two different online sources and you are surprised to find that they are so different then the incorrect explanation for the difference would be: The beta values are identical but appear different due to a simple typographical error on one of the websites.
One possible explanation for the difference in beta estimates of General Electric from two different online sources could be the time period or sample size used in the analysis. However, it would not be correct to assume that one source is incorrect simply because it differs from the other. Other factors such as the weighting methodology, the choice of market index used as a benchmark, or differences in the calculation method could also contribute to the discrepancy in the beta estimates. Therefore, it is important to compare and evaluate the assumptions and methodologies used by each source before drawing any conclusions.
The incorrect explanation for the difference in beta estimates of General Electric from two different online sources would be: The beta values are identical but appear different due to a simple typographical error on one of the websites.
Beta estimates may differ between sources due to factors such as varying timeframes, different benchmark indices, or differences in the calculation methods used by the sources. However, a simple typographical error would not be a valid explanation for a significant difference in the beta values.
There could be several reasons why beta estimates of General Electric (GE) from two different online sources might differ. Some possible explanations for the difference may include:
Different Calculation Methods: Beta is a measure of a stock's sensitivity to market movements and can be calculated using various methodologies, such as historical stock price data over different time periods or using different market indices as benchmarks. If the two online sources are using different calculation methods, it can result in different beta estimates for GE.
Timeframe: Beta estimates can vary depending on the timeframe of data used in the calculation. For example, a beta calculated using shorter-term data may result in a different estimate compared to a beta calculated using longer-term data. If the two online sources are using different timeframes for their calculations, it can lead to differences in the beta estimates for GE.
Data Quality: The accuracy and reliability of the data used in the calculation of beta can also impact the results. If the online sources are using different data sources or data quality levels, it can lead to discrepancies in the beta estimates for GE.
Market Conditions: Beta is influenced by market conditions, and different online sources may use different periods of market data or different assumptions about future market conditions. If the sources are using different assumptions or data for market conditions, it can result in different beta estimates for GE.
Updates and Revisions: Online sources may update their data and revise their estimates periodically, which can result in differences in beta estimates for GE at different points in time.
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FILL IN THE BLANK hackers use __________ to execute arbitrary scripts through the web browser.
Hackers use "cross-site scripting (XSS)" to execute arbitrary scripts through the web browser.
Cross-site scripting (XSS) is a type of web vulnerability that allows hackers to inject malicious scripts into web pages viewed by other users. This is done by taking advantage of vulnerabilities in web applications that allow user-generated content to be displayed on web pages without proper validation or sanitization.
Once the malicious script is injected into the web page, it can be executed in the context of the victim's browser, allowing the attacker to perform various unauthorized actions, such as stealing sensitive information (e.g., login credentials, credit card information), modifying web page content, redirecting users to malicious websites, or performing other malicious activities.
XSS attacks can occur in different forms, including stored (persistent) XSS and reflected (non-persistent) XSS. In stored XSS, the malicious script is permanently stored on the server and executed whenever a user requests the infected web page. In reflected XSS, the malicious script is included in the URL or input fields of a web page and is reflected back to the user in the response, causing the script to be executed in the user's browser.
Protecting against XSS attacks involves implementing proper input validation and output encoding in web applications to prevent the injection of malicious scripts into web pages. Web developers should follow secure coding practices and use security mechanisms, such as Content Security Policy (CSP), to mitigate the risk of XSS vulnerabilities. Additionally, web users should be cautious when clicking on links or entering data on web pages, especially those that do not have proper security measures in place.
Hence, hackers use "cross-site scripting (XSS)" to execute arbitrary scripts through the web browser.
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Which method do you use to test if an element is in a set or list named x?
A. (element instanceof List) || (element instanceof Set)
B. x.in(element)
C. x.contain(element)
D. x.contains(element)
E. x.include(element)
To test if an element is in a set or list named x, you should use the method "D. x.contains(element)".
In Java, the most appropriate method to check if an element is present in a list or set is the "contains()" method. The correct syntax for using this method is "x.contains(element)", where 'x' represents the list or set and 'element' represents the item you want to check for. The method returns a boolean value, i.e., 'true' if the element is present and 'false' if it's not.
The other options (A, B, C, and E) mentioned in your question are not valid methods in Java for checking the presence of an element in a list or set.
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where are sensors located on a vehicle equipped with side sonar system?
Sensors in a vehicle with a side sonar system are typically located on the side bumpers or door panels. They are evenly distributed along the length of the vehicle for effective detection.
A side sonar system in a vehicle is designed to detect obstacles and other objects near the sides of the car during maneuvers such as parking or changing lanes. To ensure comprehensive coverage, multiple sensors are embedded along the side bumpers or door panels.
These sensors emit ultrasonic waves that bounce off nearby objects and return to the sensors, allowing the system to calculate the distance to the detected object. This information is then relayed to the driver through visual or auditory cues, helping them make safe driving decisions. The precise location of sensors may vary depending on the vehicle make and model.
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Hello, here are 16 questions about basic electricity lesson. Could you please give an immediate solution? I would be very happy if you could solve them all.
The energy residing within the capacitor is effectively equal to 24 microjoules.
How to calculate the energyUsing the formula for capacitance, C = Q/V, where C is represented in Farads and V is distinguished by the voltage across the capacitor, we arrange the equation to obtain V = Q/C. Applying the given values of 0.12 mC & 3 µF culminates in 40 volts as our hypothetical voltage across the 3 µF capacitor.
Furthermore, if our desired outcome is the determinate energy stored within the capacitor, then, in accordance with E = 1/2 * C * V^2 (where E is measured in Joules), substituting the priorly acquired answers results in 24 µJ. Ergo, the energy residing within the capacitor is effectively equal to 24 microjoules.
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Please create your own question about cellular manufacturing chapter and solve that question by
explicitly listing your assumptions and calculations and submit by using MS Excel. Lets assume
that;
There will be at least 20 students
There will be at least 10 different social club kiosks
Students would like to get some information from some of these clubs by visiting
their kiosks
University management would like to convert layout of this organisation into more
lean structure
Also, the kiosk areas of ESTIEM and EST have double of the other ones due to their
active activities
Some students would like to visit some of the kiosks several times in order to get
extra information
The question and answer relating to cellular manufacturing is given below.
What is the question relating to cellular manufacturing?The Question we have created is given as follows:
In a situation where the university's administration wishes to use cellular manufacturing to simplify the arrangement of the social club kiosks in the main plaza. There are ten separate social club kiosks, with ESTIEM and EST having double the space.
At least 20 students will visit the kiosks, with some students visiting the same kiosk many times. What is the minimal number of cell necessary to fulfill demand if each kiosk can handle three students at a time?
Now to the assuption:
every student will have to visit no kosk at leastthe maximum capascity at any time for each kiosk is 3 studentsESTIEM and EST Kossk ahve twice the area of the other types of kosksthe demand for kosks is equal accross board
What is the solution?
because we have been given the following :
The number of pupils is 20.
The number of kiosks is ten.
ESTIEM and EST kiosk area = 2 x (other kiosk space)
Let x be the number of needed cells.
(number of pupils) x (number of kiosk visits per student) = total number of visits
20 x 1 = 20 total number of visits
The maximum number of visits per cell is three.
Total number of visits / Maximum number of visits per cell = Minimum number of cells necessary
Minimum number of necessary cells = 20 / 3 = 7
Hence, the least number of cells required to satisfy the demand is 7.
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where are sensors located on a vehicle equipped with side sonar system?
Sensors in a vehicle with a side sonar system are typically located on the side bumpers or door panels. They are evenly distributed along the length of the vehicle for effective detection.
A side sonar system in a vehicle is designed to detect obstacles and other objects near the sides of the car during maneuvers such as parking or changing lanes. To ensure comprehensive coverage, multiple sensors are embedded along the side bumpers or door panels.
These sensors emit ultrasonic waves that bounce off nearby objects and return to the sensors, allowing the system to calculate the distance to the detected object. This information is then relayed to the driver through visual or auditory cues, helping them make safe driving decisions. The precise location of sensors may vary depending on the vehicle make and model.
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In 1854 this person invented a safety device that prevented elevators from falling if the hoisting
cable broke.
a. Werner von Siemens
b. Sir William Armstrong
c. Elisha Otis
d. Alexander Miles
In 1854, the person who invented a safety device that prevented elevators from falling if the hoisting cable broke was Elisha Otis. The correct answer is c. Elisha Otis.
The Otis Elevator Company was established by American manufacturer and inventor Elisha Otis.
The lifting cables were known to break and result in fatal incidents, thus people were reluctant to use the lifts out of safety concerns.
Otis proposed a safety mechanism in 1853 that would stop lifts from falling if the hoisting rope snapped.
At the New York Crystal Palace Exhibition in 1854, he publicly displayed the device's prototype he had built.
As a result of this innovation, individuals could now be transported securely and effectively to higher floors, revolutionising the lift industry and enabling the construction of tall buildings.
One of the biggest elevator manufacturers in the world today, Otis Elevator Company's safety device is a must for all contemporary elevators.
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the magnitude of the line voltage at the terminals of a balanced y-connected load is 6600 v. the load impedance is the load is fed from a line that has an impedance of a) what is the magnitude of the line current? b) what is the magnitude of the line voltage at the source?
The magnitude of the line current is 30 A and the magnitude of the line voltage at the source is 6960 V.
What is the magnitude of the line current and line voltage?The problem describes a balanced Y-connected load supplied from a line with a given impedance. The magnitude of the line voltage at the load terminals is provided, which allows us to calculate the current flowing through the load using Ohm's law.
The current can be converted to the line current by dividing by the square root of 3.
To find the magnitude of the line voltage at the source, we need to consider the voltage drop due to the line impedance.
This can be calculated by multiplying the line current by the line impedance and subtracting the result from the source voltage. Once we have the source voltage, we can find the magnitude by taking the absolute value.
Overall, this problem involves applying basic principles of electrical circuits and calculations involving complex impedances.
It demonstrates the importance of understanding the relationships between voltage, current, and impedance in electrical systems.
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