A mixture of octane, C8H18, and air flowing into a combustor has 60% excess air and 1 kmol/s of octane. What is the mole flow rate (kmol/s) of CO2 in the product stream?
Answers
Answer:
8 kmol/s
Explanation:
From the given information:
The combustion reaction equation for Octane in a stoichiometric condition can be expressed as:
\(C_{8}H_{18} +12.5(O_2 + \dfrac{79}{21} N_2) \to 9H_2O +8CO_2 + 12.5(\dfrac{79}{21}N_2)\)
\(C_{8}H_{18} +12.5(O_2 + 3.76N_2) \to 9H_2O +8CO_2 + 12.5(3.76 \ N_2)\)
In the combustor, it is said that 60% of excess air and 1 mole of Octane is present.
Thus;
the air supplied = 1.6 × 12.5 = 20
The equation can now be re-written as:
\(C_{8}H_{18} +20(O_2 + 3.76N_2) \to 9H_2O +8CO_2 + 7.5 \ O_2+ 75.2 \ N_2\) because for 1 mole of Octane, 8 moles of CO2 can be found in the combustion product.
Thus, for 1 kmol/s of Octane also produce 8 kmol/s of CO2.
∴
The mole flow rate in Kmol/s of CO2 in the product stream = 8 kmol/s
Related Questions
Mr. auric goldfinger, criminal mastermind, intends to smuggle several tons of gold across international borders by disguising it as lumps of iron ore. he commands his engineer minions to form the gold into little spheres with a diameter of exactly and paint them black. however, his chief engineer points out that customs officials will surely notice the unusual weight of the "iron ore" if the balls are made of solid gold (density ). he suggests forming the gold into hollow balls instead (see sketch at right), so that the fake "iron ore" has the same density as real iron ore one of the balls of fake "iron ore," sliced in half. calculate the required thickness of the walls of each hollow lump of "iron ore." be sure your answer has a unit symbol, if necessary, and round it to significant digits.
Answers
Answer:
The thickness of the walls of each hollow lump of "iron ore" is 2.2 cm
Explanation:
Here we have that the density of solid gold = 19.3 g/cm³
Density of real iron ore = 5.15 g/cm³
Diameter of sphere of gold = 4 cm
Therefore, volume of sphere = 4/3·π·r³ = 4/3×π×2³ = 33.5 cm³
Mass of equivalent iron = Density of iron × Volume of iron = 5.15 × 33.5
Mass of equivalent iron = 172.6 cm³
∴ Mass of gold per lump = Mass of equivalent iron = 172.6 cm³
Volume of gold per lump = Mass of gold per lump/(Density of the gold)
Volume of gold per lump = 172.6/19.3 = 8.94 cm³
Since the gold is formed into hollow spheres, we have;
Let the radius of the hollow sphere = a
Therefore;
Total volume of the hollow gold sphere = Volume of gold per lump - void sphere of radius, a
Therefore;
\(33.5 = 8.94 - \frac{4}{3} \times \pi \times a^3\)
\(\frac{4}{3} \times \pi \times a^3 = 33.5 - 8.94\)
\(a^3 = \frac{24.6}{\frac{3}{4} \pi } = 5.9\)
a = ∛5.9 = 1.8
The thickness of the walls of each hollow lump of "iron ore" = r - a = 4 - 1.8 = 2.2 cm.
2. Describe one example of something that might be a need for you but a want for
someone else.
Answers
Answer:
1: water food or shelter
What is the following passage saying about the relationship between sustainability and responsibility?
How green is Green? When we brand certain products or services as “green,” “renewable,” or “sustainable,” that label can’t just consider those products or activities along a single axis. A biofuel that doesn’t depend on petroleum to produce and refine but that requires massive overproduction of certain crops which wreck the water table is not “green.” A process that relies on production that is local but also wasteful is not “green.”
Sustainability is not just about one thing but about many things coming together.
We should not market products and services as green, renewable, or sustainable.
We should only consider products or services to be green if their broad impact can be considered so.
It is likely that no product or service is really green if we carefully consider its ramifications.
Answers
What the given passage is saying about the relationship between sustainability and responsibility is that;
C: We should only consider products or services to be green if their broad impact can be considered so.
SustainabilityFrom the passage, we see a write up questioning if the things we term to be green are truly green.
Now, from the passage, we see that a biofuel that is considered to be green is not really green if we consider that if it requires massive overproduction, it could wreck the water table.
Also, he says that if the production is local but also wasteful then it is not green.
Thus, we can see clearly that before we term a product or service as green, we should also consider their broad impact on the environment.
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What is the link between fossil fuel use and flowers blooming earlier in the spring season
Answers
Answer:
a warmer earth due to fossil fuel emissions has milder winters and earlier springs
Explanation:
fossil fuels cause global warming which would make the winters less cold and spring and summer hotter.
A Contractor Has A Job Which Should Be Completed In 100 Days. At Present, He Has 80 Men On The Job And It Is Estimated That They Will Finish The Work In 130 Days. Of The 80 Men, 50 Are Each Paid ₱120.00 A Day, 25 At ₱180.00 A Day, And 5 At ₱250.00 A Day. For Each Day Beyond The Original 100 Days, A Contractor Has To Pay ₱500.00 Liquidated Damages.A) How Many
A contractor has a job which should be completed in 100 days. At present, he has 80 men on the job and it is estimated that they will finish the work in 130 days. Of the 80 men, 50 are each paid ₱120.00 a day, 25 at ₱180.00 a day, and 5 at ₱250.00 a day. For each day beyond the original 100 days, a contractor has to pay ₱500.00 liquidated damages.
a) How many more men should the contactor add so that he would complete the work on time?
b) If of the additional men, 2 are paid ₱180.00 a day, and the rest at ₱120.00 a day, would the contractor save money by employing more men and not paying the fine?
Answers
A contractor has a job that should be completed in 100 days. At present, he has 80 men on the job and it is estimated that they will finish the work in 130 days. Of the 80 men, 50 are each paid ₱120.00 a day, 25 at ₱180.00 a day, and 5 at ₱250.00 a day. For each day beyond the original 100 days, a contractor has to pay ₱500.00.
liquidated damages.(a) How many more men should the contractor add so that he would complete the work on time?In the first case, we see that the contractor already has 80 men and they are working for 130 days to complete the job. So, we can use the following formula to determine the additional number of workers required to finish the work in 100 days.
b) If of the additional men, 2 are paid ₱180.00 a day, and the rest at ₱120.00 a day, would the contractor save money by employing more men and not paying the fine Let’s assume that the contractor adds 440 workers, of which 2 are paid ₱180.00 a day and the rest are paid ₱120.00 a day.
The total cost of the new workers is, therefore, ₱9600.00 + ₱4500.00 + ₱49800.00 = ₱63,900.00.The cost of liquidated damages would be calculated as follows: $$LD = (130-100) \cdot 500 = ₱15,000.00$$.
Therefore, the contractor would save money if he employs more men and not pays the fine. The contractor’s savings would be:$$Savings = LD - Additional cost$$$$= 15000.00 - 63900.00 $$$$= -48900.00$$
Thus, we can see that the contractor would save ₱48,900.00 by employing more men and not paying the fine.
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Use the HELPrct data from the mosaicData to calculate the mean of all numeric variables (be sure to exclude missing values)
Answers
To calculate the mean of all numeric variables in the HELPrct data from the mosaicData package, we can use the colMeans() function in R. This function calculates the mean of each column in a data frame.
However, it only works on numeric columns, so we need to first remove any non-numeric columns or missing values.
To do this, we can use the select_if() function from the dplyr package to only select columns that are numeric. Then, we can use the na.omit() function to remove any rows with missing values. Finally, we can use the colMeans() function to calculate the mean of each column.
Here's the code:
library(mosaicData)
library(dplyr)
# Select only numeric columns
numeric_cols <- select_if(HELPrct, is.numeric)
# Remove rows with missing values
numeric_cols <- na.omit(numeric_cols)
# Calculate column means
means <- colMeans(numeric_cols)
# Print the result
print(means)
This will give us the mean of each numeric column in the HELPrct data, excluding any missing values.
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Both depth-first traversal and breadth-first traversal result in a spanning tree.
Group of answer choices
True
False
Answers
True.
Both depth-first traversal and breadth-first traversal can indeed result in a spanning tree. A spanning tree is a subgraph of a given graph that includes all the vertices, connecting them with a minimal set of edges. It is also acyclic, meaning that it contains no cycles.
Depth-first traversal is a graph traversal algorithm that starts at a specific vertex and explores as far as possible along each branch before backtracking. During this process, a spanning tree can be constructed by connecting each visited vertex to the vertex that led to its discovery.
Breadth-first traversal is another graph traversal algorithm that explores all the vertices at the same level before moving on to the next level. This is done by visiting all the adjacent vertices of the starting vertex and then moving on to their adjacent vertices. Similar to depth-first traversal, a spanning tree can be constructed by connecting each visited vertex to the vertex from which it was first discovered.
Both of these traversal methods are used in various applications, including searching, finding the shortest path, and creating a spanning tree from a given graph. In conclusion, both depth-first traversal and breadth-first traversal can result in a spanning tree, making the statement true.
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the sharpness of the cutting tool in subtractive manufacturing affects the amount of power needed to run it, the tool life, and the surface finish of the final part
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By removing material from the workpiece, machining is a subtractive manufacturing process.
What are the top three subcategories of subtractive manufacturing techniques?In subtractive manufacturing, which is the exact opposite of additive manufacturing, material is taken out of what was previously a large amount of the material. Turning, milling, laser and water jet cutting are examples of common subtractive manufacturing processes.With the help of a cutting tool, usually a lathe, turning is a subtractive machining technique that produces a range of shapes for finished components made of stone, wood, metal, or plastic.With the use of a laser, a material is cut or engraved using the digital subtractive production process known as laser cutting. Several materials, including plastic, wood, and metal, are suitable for laser cutting.To learn more about Subtractive manufacturing process refer to:
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Select below the type of cluster where standby server exists only to take over for another server in the event of its failure.a. Asymmetric Server
b. Symmetric Server
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An asymmetric Server is the type of cluster where a standby server exists only to take over for another server in the event of its failure.
There are numerous pathways for both incoming and outgoing network traffic in an asymmetric network. As a result, traffic traveling into or out of the network follows a different path. One route serves as both the incoming and outgoing network traffic in a symmetric network. Asymmetric communications include things like Asymmetric Digital Subscriber Lines (ADSL). On existing phone lines, ADSL technology sends digital data at a high bandwidth. The SSL/TLS protocol, used to facilitate secure communications across a computer network, contains the RSA algorithm, the most used asymmetric algorithm.
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when traveling on a forklift the carried load must be at the highest possible position during travel. (True or False)
Answers
False. When traveling on a forklift, it is not necessary to have the carried load at the highest position.
Maintaining a lower position for the carried load during travel ensures better stability, visibility, and adherence to the forklift's load capacity limits.
When traveling on a forklift, the carried load should not be at the highest possible position during travel.
It is recommended that the load be kept as low as possible, close to the ground, and tilted back slightly for stability. This is because a high load center of gravity can make the forklift unstable and increase the risk of tipping over.
Additionally, a high load can obstruct the operator's view, making it difficult to see potential hazards and obstacles in the forklift's path.
It is essential to follow safe load handling procedures and the manufacturer's guidelines when operating a forklift to prevent accidents and ensure the safety of the operator and others in the surrounding area.
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TRUE/FALSE. when providing transcutaneous pacing, the appearance of wide qrs complexes and tall, broad t waves after each pacing spike confirms that mechanical capture has been achieved.
Answers
The statement is false. When providing transcutaneous pacing, the appearance of wide QRS complexes and tall, broad t waves after each pacing spike confirms that mechanical capture has been achieved.
A combination of the Q surge, R surge and S surge, the “ QRS complex ” represents ventricular depolarization. This term can be confusing, as not all ECG leads contain all three of these swells; yet a “ QRS complex ” is said to be present anyhow.
For illustration, the normal QRS complex in lead V1 doesn't contain a Q surge — only a R surge and S surge but the combination of the R surge and S surge is still appertained to as the QRS complex for this lead.
The normal duration( interval) of the QRS complex is between 0.08 and 0.10 seconds — that is, 80 and 100 milliseconds. When the duration is between 0.10 and0.12 seconds, it's intermediate or slightly dragged . A QRS duration of lesser than 0.12 seconds is considered abnormal. The QRS duration will outstretch when electrical exertion takes a long time to travel throughout the ventricular myocardium. The normal conduction system in the ventricles is called the His- Purkinje system and consists of cells that can conduct electricity relatively fleetly.
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you perform 100 j of work on a refrigerator that extracts heat from a cold reservoir and dumps heat into a hot reservoir. the amount of heat dumped into the hot reservoir must be
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With 100 J of heat available from the first law of thermodynamics, we would dump it into the hot reservoir.
What exactly is the first thermodynamics law?We are aware that the study of heat transfer falls under the purview of thermodynamics. Heat is a factor that could raise an object's temperature. As a result, heat can also be referred to as a type of energy that results from the temperature differential between the things.
The heat engine reservoir is what?A heat engine is a device that uses a heated body as a reservoir and transfers heat there from to perform work. A small amount of heat is discharged toward the sink (cold body).
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An electrical engineer at GRIDCO is given two separate toolboxes to keep his working tools. The first toolbox has 4 white fuses and 3 black fuses and the second toolbox has 3 white fuses and 5 black fuses. Suppose the engineer select a fuse from the first toolbox and placed unseen in the second toolbox. What is the probability that: (a) the fuse drawn from the second toolbox is black? (B) the fuse drawn from the second toolbox is white? (8) ane is white?
Answers
(a) The probability of drawing a black fuse from the second toolbox is 4/7.
(b) The probability of drawing a white fuse from the second toolbox is 3/7.
(c) The probability that one fuse is white is 27/49.
To calculate the probabilities, we need to consider the number of white and black fuses in each toolbox.
First, let's determine the total number of fuses in each toolbox:
First Toolbox:
Total fuses = 4 white fuses + 3 black fuses = 7 fuses
Second Toolbox:
Total fuses = 3 white fuses + 5 black fuses = 8 fuses
(a) The probability that the fuse drawn from the second toolbox is black:
The probability of drawing a black fuse from the second toolbox depends on the fuse selected from the first toolbox. There are two scenarios to consider:
Scenario 1: The fuse selected from the first toolbox is black.
In this case, the second toolbox will have 3 black fuses remaining out of the total 7 fuses.
Probability = (Number of black fuses in the second toolbox)/(Total number of fuses in the second toolbox)
Probability = 3/7
Scenario 2: The fuse selected from the first toolbox is white.
In this case, the second toolbox will have 5 black fuses out of the total 7 fuses.
Probability = (Number of black fuses in the second toolbox)/(Total number of fuses in the second toolbox)
Probability = 5/7
To calculate the overall probability, we need to consider the probability of each scenario and weigh it by the probability of selecting a fuse of that color from the first toolbox. Since the fuse from the first toolbox has an equal chance of being white or black, we need to take an average of the probabilities in both scenarios.
Probability of drawing a black fuse from the second toolbox = (Probability of scenario 1 + Probability of scenario 2)/2
Probability of drawing a black fuse from the second toolbox = (3/7 + 5/7)/2
Probability of drawing a black fuse from the second toolbox = 8/14
Probability of drawing a black fuse from the second toolbox = 4/7
Therefore, the probability of drawing a black fuse from the second toolbox is 4/7.
(b) The probability that the fuse drawn from the second toolbox is white:
Similarly, we can calculate the probability of drawing a white fuse from the second toolbox. It will be the complement of the probability of drawing a black fuse.
Probability of drawing a white fuse from the second toolbox = 1 - Probability of drawing a black fuse from the second toolbox
Probability of drawing a white fuse from the second toolbox = 1 - 4/7
Probability of drawing a white fuse from the second toolbox = 3/7
Therefore, the probability of drawing a white fuse from the second toolbox is 3/7.
(c) The probability that one is white:
To calculate the probability that one fuse is white, we need to consider both scenarios: either the fuse drawn from the first toolbox is white and the fuse drawn from the second toolbox is black, or the fuse drawn from the first toolbox is black and the fuse drawn from the second toolbox is white.
Scenario 1: Fuse drawn from the first toolbox is white, and the second toolbox has a black fuse:
Probability = (Probability of drawing a white fuse from the first toolbox) * (Probability of drawing a black fuse from the second toolbox)
Probability = (3/7) * (5/7)
Scenario 2: Fuse drawn from the first toolbox is black, and the second toolbox has a white fuse:
Probability = (Probability of drawing a black fuse from the first toolbox) * (Probability of drawing a white fuse from the second toolbox)
Probability = (4/7) * (3/7)
To calculate the overall probability, we need to sum up the probabilities of both scenarios:
Probability that one fuse is white = Probability
of scenario 1 + Probability of scenario 2
Probability that one fuse is white = (3/7) * (5/7) + (4/7) * (3/7)
Probability that one fuse is white = 15/49 + 12/49
Probability that one fuse is white = 27/49
Therefore, the probability that one fuse is white is 27/49.
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how to answer for computer science quora how do your interests directly connect with cornell engineering? if you have an intended major, what draws you to that department at cornell engineering? if you are unsure what specific engineering field you would like to study, describe how your general interest in engineering most directly connects with cornell engineering. it may be helpful to concentrate on one or two things that you are most excited about\.\* (250 words)
Answers
Focus primarily on highly precise specifics of what Cornell offers and how it matches with your interests and values. You can regard this as a "Why us?" essay with some optional "Why major" spice.
How to write essay ?Cornell is fundamentally a research institution, and I am fundamentally a researcher. The Collective Embodied Intelligence Lab would be the ideal place for me to put what I have learned from my own work in that area to use while learning from Dr. Petersen and her ground-breaking research in termite-inspired construction robots. The lab focuses on the control of multi-agent robotic systems, especially drawing inspiration from insect swarm mechanics. Cornell is known for its research, but what truly stood out to me was its distinct dedication to project teams. I discovered I wanted to join every team after doing my homework on them. Consider Baja; the idea of creating an off-road car from scratch is comparable to FTC competitions. Even though I have a strong foundation in CAD, wiring, and chassis construction, I'm eager to tackle more complex issues with even more room for creativity.To learn more about essay refer :
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A small submarine has a triangular stabilizing fin on its stern. The fin is 1 ft tall and 2 ft long. The water temperature where it is traveling is 60°F. Determine the drag on the fin when the submarine is traveling at 2.5 ft/s.
Answers
Answer:
\(\mathbf{F_D \approx 1.071 \ lbf}\)
Explanation:
Given that:
The height of a triangular stabilizing fin on its stern is 1 ft tall
and it length is 2 ft long.
Temperature = 60 °F
The objective is to determine the drag on the fin when the submarine is traveling at a speed of 2.5 ft/s.
From these information given; we can have a diagrammatic representation describing how the triangular stabilizing fin looks like as we resolve them into horizontal and vertical component.
The diagram can be found in the attached file below.
If we recall ,we know that;
Kinematic viscosity v = \(1.2075 \times 10^{-5} \ ft^2/s\)
the density of water ρ = 62.36 lb /ft³
\(Re_{max} = \dfrac{Ux}{v}\)
\(Re_{max} = \dfrac{2.5 \ ft/s \times 2 \ ft }{1.2075 \times 10 ^{-5} \ ft^2/s}\)
\(Re_{max} = 414078.6749\)
\(Re_{max} = 4.14 \times 10^5\) which is less than < 5.0 × 10⁵
Now; For laminar flow; the drag on the fin when the submarine is traveling at 2.5 ft/s can be determined by using the expression:
\(dF_D = (\dfrac{0.664 \times \rho \times U^2 (2-x) dy}{\sqrt{Re_x}})^2\)
where;
\((2-x) dy\) = strip area
\(Re_x = \dfrac{2.5(2-x)}{1.2075 \times 10 ^{-5}}\)
Therefore;
\(dF_D = (\dfrac{0.664 \times 62.36 \times 2.5^2 (2-x) dy}{\sqrt{ \dfrac{2.5(2-x)}{1.2075 \times 10 ^{-5}}}})\)
\(dF_D = 1.136 \times(2-x)^{1/2} \ dy\)
Let note that y = 0.5x from what we have in the diagram,
so , x = y/0.5
By applying the rule of integration on both sides, we have:
\(\int\limits \ dF_D = \int\limits^1_0 \ 1.136 \times(2-\dfrac{y}{0.5})^{1/2} \ dy\)
\(\int\limits \ dF_D = \int\limits^1_0 \ 1.136 \times(2-2y)^{1/2} \ dy\)
Let U = (2-2y)
-2dy = du
dy = -du/2
\(F_D = \int\limits^0_2 \ 1.136 \times(U)^{1/2} \ \dfrac{du}{-2}\)
\(F_D = - \dfrac{1.136}{2} \int\limits^0_2 \ U^{1/2} \ du\)
\(F_D = -0.568 [ \dfrac{\frac{1}{2}U^{ \frac{1}{2}+1 } }{\frac{1}{2}+1}]^0__2\)
\(F_D = -0.568 [ \dfrac{2}{3}U^{\frac{3}{2} } ] ^0__2\)
\(F_D = -0.568 [0 - \dfrac{2}{3}(2)^{\frac{3}{2} } ]\)
\(F_D = -0.568 [- \dfrac{2}{3} (2.828427125)} ]\)
\(F_D = 1.071031071 \ lbf\)
\(\mathbf{F_D \approx 1.071 \ lbf}\)
Explain the importance of selecting and using the correct mathematical tools and methods when conducting calculations
Answers
Answer:
Selecting and using the correct mathematical tools and methods is crucial when conducting calculations because it can help ensure the accuracy and reliability of the results obtained. Here are some reasons why:
1. Accuracy: Using the correct mathematical tool or method ensures that calculations are performed accurately, resulting in reliable and trustworthy results.
2. Efficiency: Selecting the most appropriate mathematical tool or method can help you perform calculations more efficiently, allowing you to save time and resources.
3. Relevance: Choosing the right mathematical tool or method can help you obtain results that are relevant to the problem you are trying to solve, making your analysis more insightful and useful.
4. Consistency: Selecting and using the same mathematical tools and methods consistently over time can help ensure consistency in your results and make it easier to compare different calculations.
5. Communication: Using the correct mathematical tools and methods can make it easier to communicate your results with others, as it ensures that everyone is using the same terminology and approach.
In summary, selecting and using the correct mathematical tools and methods is essential for accurate, efficient, and relevant calculations, as well as for consistency and effective communication of results
Develop a cause and effect (fishbone) diagram to address everything that impacts your grade in this course. How much is under your control? What is the impact from your faith?
Answers
A visual aid for classifying a problem's possible origins is a fishbone diagram.
Thus, This technique is used to determine the underlying causes of issues. A fishbone diagram combines the technique of brainstorming with a form of mind map template, and is frequently used for root cause analysis. As a test case technique to ascertain cause and effect, it ought to be effective.
In product development and troubleshooting procedures, a fishbone diagram is helpful because it may be used to centre a discussion on a specific issue.
The facilitator works with the group to rank potential causes in order of priority and create a hierarchy once the group has brainstormed every potential source of the issue. The diagram's design, which closely resembles, the source of the name and fishbone.
Thus, A visual aid for classifying a problem's possible origins is a fishbone diagram.
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Which part of a machine control unit interacts with the machine tools through electric signals?=]
A machine control unit is the electronic hardware that stores information and controls the machine tools. This unit contains a data processing unit that stores and manipulates data, and a ___________ that interacts with the machine tools through electrical signals.
Answers
Answer:
control loop unit
Explanation:
Edmentum/Plato
John Smith, the chief engineer at Sunrise Hotel, is concerned with the air duct system passages that are clogged and need cleaning and do not allow the efficient passage of air to the guestrooms. This concern is related to Select one: a. infiltration load b. solar load c. ventilation load d. unbearable load
Answers
John Smith, the chief engineer at Sunrise Hotel, is concerned with the air duct system passages that are clogged and need cleaning and do not allow the efficient passage of air to the guestrooms. This concern is related to the ventilation load.
What is a ventilation load? A ventilation load is the air that enters and exits a building due to the required need to ventilate the building. There are three main types of ventilation loads, namely natural ventilation, mechanical ventilation, and mixed-mode ventilation. The goal of ventilation is to regulate the air movement inside the building, especially in the air duct system passages and air conditioning unit. The proper functioning of the air duct system passages is essential for the efficient passage of air in the building.
For instance, air duct systems are responsible for supplying air to an HVAC unit, distributing air throughout the building, and returning the air to the air handler for further processing before being redistributed throughout the building. If the air duct system passages are clogged and need cleaning, it means that they do not allow efficient passage of air to the guestrooms. Therefore, John Smith, the chief engineer at Sunrise Hotel, is concerned about the ventilation load due to the clogged air duct system passages.
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Find the value of P(-1.5≤Z≤2)
Answers
Answer:
0.9104
Explanation:
Suitable technology can tell you the probability.
P(-1.5≤Z≤2) ≈ 0.9104
__
A phone app gives the probability as 0.9104426667829628.
Identify the correct statement(s) regarding dedicated circuits.
a. because call setup is not required, dedicated circuits are very efficient
b. dedicated and circuit switched concepts are identical
c. dedicated circuits are used between specific locations where 24/7 connectivity is needed
d. all statements are correct
Answers
Answer:
a, c
Explanation:
It is not true that dedicated and switched circuit concepts are identical, so it is not true that "all statements are correct." The statements that are correct are ...
a. because call setup is not required, dedicated circuits are very efficient
c. dedicated circuits are used between specific locations where 24/7 connectivity is needed
All of these are true about GMA (MIG) welding EXCEPT that:
O both the base metal and electrode are melted.
O shielding gas protects the well, tiom contamination.
O heat is produced using a short electric arc.
the welding gun liner regulates the shielding gas.
Answers
Answer:
the welding gun liner regulates the shielding gas.
Explanation:
The purpose of the welding gun liner is to properly position the welding wire from the wire feeder till it gets to the nozzle or contact tip of the gun. Regulation of the shielding gas depends on factors such as the speed, current, and type of gas being used. In gas metal arc welding, an electric arc is used to generate heat which melts both the electrode and the workpiece or base metal.
The electric arc produced is shielded from contamination by the shielding gas. The heat generated by the short electric arc is low.
In what way is a parallel circuit different from a series circuit?
Answers
what is the steady-state average output voltage (expressed in volts)?
Answers
The steady-state average output voltage is 5 volts.
What is the average output voltage in steady-state conditions?In electronic circuits, steady-state refers to a condition where all voltages and currents have reached their constant values and are no longer changing over time. The steady-state average output voltage, expressed in volts, is a measure of the constant voltage level at the output of a circuit. It represents the average value of the voltage over time in a stable state.
In this case, the steady-state average output voltage is determined to be 5 volts. This value indicates the average voltage that can be expected at the output of the circuit when it reaches a stable operating condition.
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Suppose we are given three boxes, Box A contains 20 light bulbs, of which 10 are defective, Box B contains 15 light bulbs, of which 7 are defective and Box C contains 10 light bulbs, of which 5 are defective. We select a box at random and then draw a light bulb from that box at random. (a) What is the probability that the bulb is defective? (b) What is the probability that the bulb is good?
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Answer:
0.49
0.51
Explanation:
Probability that bulb is defective :
Let :
b1 = box 1 ; b2 = box 2 ; b3 = box 3
d = defective
P(defective bulb) = (p(b1) * (d|b1)) + (p(b2) * p(d|b2)) + (p(b3) * p(d|b3))
P(defective bulb) = (1/3 * 10/20) + (1/3 * 7/15) + (1/3 * 5/10))
P(defective bulb) = 10/60 + 7/45 + 5/30
P(defective bulb) = 1/6 + 7/45 + 1/6 = 0.4888
= 0.49
P(bulb is good) = 1 - P(defective bulb) = 1 - 0.49 = 0.51
to attain maximum power delivered to a load, what value of load impedance is required if the load can have any complex value?
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The maximum power transfer theorem is a theorem in electrical engineering that states that the maximum power transfer from a power source to a load occurs when the load impedance is the complex conjugate of the source impedance. This is only true if the source impedance and the load impedance are both complex numbers.
To attain maximum power delivered to a load, the value of load impedance required if the load can have any complex value is equal to the complex conjugate of the source impedance. This statement is based on the maximum power transfer theorem .To clarify, impedance is the resistance of an electrical circuit to the flow of an alternating current. It can be represented by a complex number with a real part and an imaginary part. Furthermore, a complex conjugate is a complex number that has the same real part but the opposite imaginary part. In other words, if the impedance is a + bi, its complex conjugate would be a - bi.What is the value of load impedance required for maximum power transfer?The value of load impedance required for maximum power transfer is the complex conjugate of the source impedance. This is true for both resistive and reactive loads. If the load impedance is not equal to the complex conjugate of the source impedance, the power transferred to the load will be less than the maximum possible value. Therefore, the load impedance should be carefully selected to ensure that maximum power transfer is achieved.The formula for calculating the value of the load impedance required for maximum power transfer is given as follows:ZL = Z*S where ZL is the load impedance, Z is the source impedance, and S is the complex conjugate of Z.For such more question on impedance
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Tech a says both oem and tcmc brake pad kits come with new shims. Tech b says tcmc products have a 13 digit part number instead of the traditional 10 digits. Who is correct?
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28. the pistons in a car engine move up and down repeatedly to turn the crankshaft, as shown. find the height of the point p above the center o of the crankshaft in terms of the angle u.
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The height of point P can be determined using trigonometry and the geometric relationship between the crankshaft, connecting rod, and point P, allowing us to express it as a function of the angle u.
How can the height of point P above the center O of the crankshaft be determined in terms of the angle u?In a car engine, the pistons move up and down to rotate the crankshaft, which converts linear motion into rotational motion. To find the height of point P above the center O of the crankshaft in terms of the angle u, we need to consider the geometry of the engine mechanism.
Assuming a simple crank-slider mechanism, where the crankshaft is represented by a rotating rod and the piston is attached to a connecting rod, the height of point P can be determined using trigonometry. As the crankshaft rotates, the connecting rod swings back and forth, causing the piston to move up and down.
By observing the right triangle formed by the crankshaft, connecting rod, and the line connecting point P to the center O, we can express the height of point P as a function of the angle u. The trigonometric relationship between the angle u, the length of the connecting rod, and the height of point P can be established using sine or cosine functions.
By analyzing this relationship, we can derive a mathematical expression that relates the angle u to the height of point P. This expression allows us to determine the height of point P at any given angle u during the engine's operation.
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The DOT places more restrictions on operators of heavy trucks than on lighter trucks. Why do you think this is?
Only the states can regulate drivers of light trucks.
The drivers of heavy trucks go on long hauls, and therefore are most likely to engage in smuggling and related activities that might pose a national security risk.
The DOT does not actually place more restrictions on operators of heavy trucks.
The DOT is tasked with protecting the safety of people on the roadways, and long hauls pose more such risks.
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The DOT places more restrictions on operators of heavy trucks than on lighter trucks. The reason for this is that "The DOT is tasked with protecting the safety of people on the roadways, and long hauls pose more such risks."
What is the DOT?The United States Department of Transportation (or DOT) is a federal cabinet department of the United States government involved with transportation. It was founded in 1966 and went into operation on April 1, 1967. The United States Secretary of Transportation is in charge of it.
Its goal statement is: "To serve the United States by assuring a rapid, safe, efficient, open, and convenient transportation system that satisfies our essential national interests and improves the quality of life of the American people today and in the future."
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Please help me with the question in the picture
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The IP address of host 2 on subnet 6 would be the second address in the subnet, which is: 227.12.1.41
How to get the informationIt should be noted that to discover the IP address of Host 2 on Subnet 6, first we must uncover the network address of the sixth subnet. Since the number is 6, the network address bears the designation of the sixth subnet belonging to a Class C Network 227.12.1.0.
In order to ascertain the network adress of Subnet 6, one must become familiar with the block size. By examining the subnet mask /29, it can be deduced that the block size's magnitude must be equal to 2^(32-29)= 8. Summarily, the network address of Subnet 6 would correspond as:
227.12.1.0 + (6-1) * 8 = 227.12.1.40
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