The Angles and Saxons invaded the British Isles in 449 AD, taking advantage of the Roman Empire's decline. This led to the establishment of the Anglo-Saxon Heptarchy and shaped Britain's language, culture, and politics.
The largest and most permanent invasion of the British Isles by the Angles and Saxons, a tribe from Northwestern Europe, took place in the year 449 AD. The tribes started moving towards Britain from what is now Denmark and Northern Germany, and it's estimated that around 15,000 people made the journey across the North Sea to Britain.The Angles and Saxons invaded Britain due to the decline of the Roman Empire and the subsequent withdrawal of their forces from the British Isles. This power vacuum made it easier for the tribes to invade and establish their settlements across the country.The invasion of the Angles and Saxons was so successful that they were able to establish seven different kingdoms in what is now England, known as the Anglo-Saxon Heptarchy. These kingdoms included Wessex, Mercia, Northumbria, East Anglia, Kent, Sussex, and Essex. The Anglo-Saxon invasion had a significant impact on the development of Britain and its language, culture, and political system. It's important to note that while the invasion was significant, it was not a sudden event and took place over a number of years, with different tribes and groups arriving at different times.For more questions on Angles and Saxons
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SHOW ALL WORK, DRAW ALL PICTURES
There were no values given with the picture, use what values you
think work best.
ENGR 3024 Mechanics of Materials Combined Loading Project Spring 2020 This document will be submitted as a formal analysis. (This means a neat, well- annotated homework problem). You will pick from se
In this field, the study of material properties, behavior, and structure is critical to the analysis of mechanical systems. Mechanics of Materials is a crucial subject that deals with the study of physical behaviors of various materials like metals, ceramics, polymers, and composite materials under different types of loads.
This essay is going to analyze the combined loading project in three-dimensional stress analysis. To ensure an effective analysis of the combined loading project, it is critical to identify the materials and their characteristics. The characteristics of the materials should be analyzed before identifying the forces acting on them. The forces acting on the materials should also be analyzed before proceeding with the calculations. Once the forces acting on the materials are identified, they can be calculated and the magnitude and direction of the resultant forces can be determined.
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underline the noun phrase in the following sentence
the policemen just left the crime scene.
2, the bus is always crowded
3, it is my favourite ice cream
4, some children don't obey their parents
5, everyone like a person with a big smile
6, my dog is my best friend
7, 11 players are needed to play cricket.
8, the boy in the white T-shirt won the competition
1. the policemen just left the crime scene.
2. the bus is always crowded
3. it is my favourite ice cream
4. some children don't obey their parents
5. everyone likes a person with a big smile
6. my dog is my best friend
7. 11 players are needed to play cricket.
8. the boy in the white T-shirt won the competition
Explain the importance of sustainability and environmental
economics as it relates to infrastructure?
Infrastructure plays a crucial role in the socio-economic development of a country. Sustainable infrastructure and environmental economics are two areas that are critical to achieving this. The following are some of the most critical aspects of infrastructure sustainability and environmental economics:1. Enhancing resilience - Infrastructure development must take into account environmental challenges such as climate change, pollution, and natural disasters. Sustainability entails the development of resilient infrastructure that can withstand natural and human-induced shocks, as well as the development of risk management strategies that ensure that infrastructure remains operational in the face of these challenges.
Cost-effective management - Sustainable infrastructure and environmental economics necessitate cost-effective management strategies that maximize economic benefits while minimizing environmental impacts. By reducing waste and inefficiencies in infrastructure operations and management, infrastructure sustainability and environmental economics can contribute to the development of a more efficient and cost-effective economy.3. Environmental conservation - Sustainable infrastructure and environmental economics also play a critical role in promoting environmental conservation. The development of sustainable infrastructure, for example, may entail the use of renewable energy sources, the adoption of eco-friendly construction practices, and the development of waste management strategies that prioritize recycling and waste reduction.
Social and economic development - Sustainable infrastructure and environmental economics are critical to promoting social and economic development. By improving access to essential services, such as transportation, energy, and water, sustainable infrastructure can contribute to poverty reduction and social equity. At the same time, the adoption of cost-effective and sustainable infrastructure management strategies can lead to the creation of jobs and economic growth.Sustainable infrastructure and environmental economics are critical to the long-term socio-economic development of a country. By promoting resilience, cost-effective management, environmental conservation, and social and economic development, infrastructure sustainability and environmental economics can contribute to the creation of a more sustainable, equitable, and prosperous society.
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5) Using the analytical method of joints, determine the stress in the members of the truss shown. ( 30 points)
The analytical method of joints is used to calculate the axial forces in the truss members. For this method, the forces in a joint are considered in order to determine the force in each member connected to the joint.
The following figure represents the truss, and we will use the analytical method of joints to determine the stress in the members. We start by analyzing the joint A as shown in the following diagram. (Please refer to the attached image to view the truss diagram.)
Since there is no external force acting on this joint, the total force acting on it is zero. The reaction force is assumed to act along the positive y-axis. We will take the forces acting in tension as positive. Thus, using the method of joints, we can write the following equation:F_4(cos 60°) + F_3 = 0F_4 = -(F_3/cos 60°)F_4 = -2 F_3We now move on to joint C. Since we already know F4, we can calculate the force in member BC. As usual, we will take the forces acting in tension as positive.
Thus, using the method of joints, we can write the following equation:F_2(cos 45°) + F_4(cos 30°) = 0F_2 = -(F_4cos 30°)/cos 45°F_2 = -1.732 F_3We now move on to joint D. Since we already know F2, we can calculate the force in member DE. As usual, we will take the forces acting in tension as positive.
Thus, using the method of joints, we can write the following equation:F_1(cos 60°) + F_2(sin 45°) = 0F_1 = -(F_2sin 45°)/cos 60°F_1 = -0.5 F_2 = 0.866 F_3Finally, we move on to joint B. Since we already know F2, we can calculate the force in member AB. As usual, we will take the forces acting in tension as positive.
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To ensure people with a disability can use overpasses and underpasses, one or more of the following should be provided handrails minimum width of 1 metre if straight ramps with a maximum gradient of 1:14 stairs
To ensure people with a disability can use overpasses and underpasses, one or more of the following should be provided handrails minimum width of 1 metre if straight ramps with a maximum gradient of 1:14 stairs these features ensure the safety and ease of access to the individuals using them.
Overpasses and underpasses are necessary to provide safe and efficient transportation to individuals who have disabilities. People with disabilities face significant challenges in navigating overpasses and underpasses. As a result, the following features must be provided in order to ensure that they can use overpasses and underpasses handrails, minimum width of 1 metre if straight ramps with a maximum gradient of 1:14, and stairs. These features ensure the safety and ease of access to the individuals using them. Handrails are necessary to provide stability and support when climbing up and down the stairs.
The handrails should be designed in such a way that they can be gripped comfortably, and they should be at a suitable height from the ground. Ramps should be constructed to enable the users to ascend and descend with ease, and the slope should be gradual, with a maximum gradient of 1:14. Additionally, stairs should be provided for people who are comfortable using them. the steps must be designed to be of equal height, and the landing should be wide enough to accommodate a wheelchair user. So therefore these features should be kept in mind to ensure that individuals with disabilities can access overpasses and underpasses.
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How
defects are treated in commercial building vs domestic
building?
Defects in commercial buildings and domestic buildings are treated differently. Commercial buildings are structures created for business or commercial reasons, whereas domestic buildings are structures made for living. As a result, the treatment of defects in both types of structures differs.
Some differences are as follows:
Treatment of defects in commercial buildings:Building defects in commercial buildings are dealt with in a unique way. The owner and/or tenants have to comply with strict compliance requirements.When it comes to defects in commercial buildings, the following are some of the most important considerations:
Security: Commercial buildings' defects are addressed with priority given to the safety of the structure's occupants and employees. Maintenance: The faults are evaluated based on their severity and prioritized. The maintenance workers follow a strict timeline to ensure that repairs are completed quickly and safely. Legal: When it comes to commercial buildings, any fault that poses a safety hazard must be rectified right away, and the business owner must bear any repair expenses.Treatment of defects in domestic buildings:Building faults in domestic buildings are dealt with in a variety of ways, depending on the extent of the fault and the property owner's responsibility.
Some of the critical points to consider when treating faults in residential buildings are as follows:
Responsibility: Domestic building defects are the responsibility of the building's owner, who must take the required actions to rectify the faults. Insurance: Homeowners' insurance coverage can assist cover the cost of repairs to defects caused by covered events. Legal: Legal considerations in domestic buildings are less strict than in commercial buildings. The building's owner has to address the defects in a timely manner, but the regulations are not as rigid as they are in commercial buildings.Learn more about commercial building at
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Write equations for the shearing force and bending
moment at any points in the beam and plot shear and moment
diagrams. (Thank you so much)
To determine the shearing force and bending moment at any point in a beam, several equations can be used. The shearing force equation represents the sum of all external forces acting on one side of the point, while the bending moment equation considers the sum of all moments caused by the external forces. Plotting shear and moment diagrams helps visualize the distribution of these forces along the length of the beam.
The shearing force (V) at any point in a beam can be calculated by summing the forces acting on one side of the point. The equation for the shearing force is given by: = Sum of the forces on the left side of the point− Sum of the forces on the right side of the point
V=Sum of the forces on the left side of the point−Sum of the forces on the right side of the point
The shearing force can change abruptly at concentrated loads or continuously with distributed loads. The bending moment (M) at any point in a beam is determined by summing the moments caused by the external forces on one side of the point. The equation for the bending moment is:= Sum of the moments on the left side of the point− Sum of the moments on the right side of the point
M=Sum of the moments on the left side of the point−Sum of the moments on the right side of the point
The bending moment can change gradually or abruptly at concentrated moments or due to changes in load distribution. To visualize the distribution of shearing force and bending moment along the beam, shear and moment diagrams can be plotted. The shear diagram shows the variation of shearing force along the length of the beam, while the moment diagram represents the variation of bending moment. These diagrams provide insights into the internal forces and can be useful for designing and analyzing beam structures.
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Who killed Jim Crow? How? 250 words or more please
Fifty years ago this Thursday, President Lyndon B. Johnson tried to bury Jim Crow by signing the the Voting Rights Act of 1965 into law.
The Civil Rights Movement of the 1950s and 60s was instrumental in bringing an end to Jim Crow. African American leaders such as Martin Luther King Jr. organized protests, sit-ins, and other nonviolent actions to challenge segregation and demand equal rights. The movement gained national attention and helped to push for legal and social change. African Americans and their allies brought many legal challenges to Jim Crow laws. In landmark cases such as Brown v. Board of Education and Loving v. Virginia, the Supreme Court ruled that segregation was unconstitutional and that interracial marriage was legal. These decisions helped to dismantle the legal framework of Jim Crow. The unequal treatment of The laws remained in effect until the 1960s, when the Civil Rights Movement helped to dismantle them.
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which evidence below directly supports the author's claim that while raising their children, parents will make mistakes?
there are different pieces of evidence to support the author's claim that while raising their children, parents will make mistakes, which include the author's personal experience, the challenges of being a parent, and how much they love their children.
One of the evidence that directly supports the author's claim that while raising their children, parents will make mistakes is “We love our children so much that we will mess up. It’s inevitable. There is no way to avoid it.” This evidence shows that parents make mistakes because they love their children and try to do everything for their well-being, but they are not perfect and might not get everything right.Additionally, the author mentions that parenting is the hardest job in the world. No one goes to school to learn how to become a parent. We all learn on the job. This evidence shows that parents do not have all the answers, and they are not given any manual or guide to raising their children. Therefore, they will make mistakes along the way.Another evidence that supports the author's claim is the personal experience shared by the author, "I know I’m not perfect. I’ve yelled at my kids when I shouldn’t have. I’ve been on my phone when they wanted my attention. I’ve made mistakes.” This evidence confirms that even the author, who is a parent, makes mistakes while raising her children. This implies that parents are also human and can make mistakes.
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There is a rectangular cross section having open channel. Depth of flow is 0.5m in flood condition, the width of the channel is 3m, velocity is 5 m/s, and the critical depth is 0.86 m. There will be a l During hydraulic jump there is 0.3 m head loss. Which one is the new water depth for river regime in m. approximately? A. 1.28 OB. 1.14 OC. 1.27 Seçimi Sıfırla NRAKİ Kaydet
Therefore, the new water depth for river regime in m. approximately is 1.28 m (Option A). The solution to the problem is shown below:Given parameters are:Width of the channel, b = 3 m Depth of flow during the flood condition, d₁ = 0.5 mVelocity of flow, V₁ = 5 m/sCritical depth, dₐ = 0.86 mHead loss, h_L = 0.3 m
Let us find out Froude number, F₁:Froude number, F₁ = V₁ / √gd₁Where,g = acceleration due to gravity = 9.81 m/s²Therefore,F₁ = 5 / √(9.81 × 0.5) = 1.42Since F₁ > 1, it means the initial flow condition is supercritical. For supercritical flow conditions, we use the following formula to find out the new depth of flow during the hydraulic jump: d₂ / d₁ = [2/(F₁² + 1)] ± √[(2/(F₁² + 1))² - 1]
Here, we can take the minus sign for the root since the final depth of flow will be lesser than the initial depth of flow.d₂ / d₁ = [2/(1.42² + 1)] - √[(2/(1.42² + 1))² - 1]Therefore, d₂ / 0.5 = 0.708 – 0.67d₂ = 0.67 × 0.5 / (1 – 0.67) ≈ 1.28 m
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The following general activities are proposed for production of heavy machines (not in order) Test of prototype (3 weeks) Revise the design (2 weeks) Pre-Design (4 weeks) Market analysis (2 weeks) Order of raw materials (5 weeks) Construction of Prototype (3 weeks) Production of machines (4 weeks) Construct the GANTT chart for this process in the correct order of activities and define the critical path for it. Note: Some activities are parallel. .
The following is the GANTT chart for the production of heavy machines: Order of raw materials (5 weeks) → Pre-Design (4 weeks) → Market analysis (2 weeks) → Revise the design (2 weeks) → Construction of Prototype (3 weeks) → Test of prototype (3 weeks) → Production of machines (4 weeks)
The critical path of the GANTT chart for the production of heavy machines is Pre-design, Construction of Prototype, Test of Prototype, and Production of Machines.
In a simple truss, the number of joints, \( n \), and the number of members, \( m \), are related by the following equation: \[ m=2 n-3 \] Select one: True False
The equation m=2n−3 does not accurately represent the relationship between the number of joints (n) and the number of members (m) in a simple truss.
The equation m=2n−3 is often used as a rule of thumb or approximation in some cases, but it is not universally true for all truss configurations. In a simple truss, where each member is connected to two joints, the number of members will generally be less than or equal to twice the number of joints, but it may not always be exactly.The actual number of members in a truss depends on various factors such as the specific geometry of the truss, the number of support conditions, and the presence of any additional bracing or redundancy. Trusses can be designed with different configurations, including Pratt trusses, Warren trusses, and Howe trusses, among others, each having its own unique arrangement of joints and members.
Therefore, it is important to carefully analyze and design trusses based on the specific requirements and constraints of the structure rather than relying solely on a simplistic equation.
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lexible Pavements (15 Points) A flexible pavement is constructed with 2.5 inches of sand-mix asphaltic wearing surface, 5 inches of dense-graded crushed stone base, and X3 inches of crushed stone subbase. The base and subbase drainage coefficient is 1.0. a) What is the structural number of the pavement? (5 points) b) Assuming the SN of the above pavement is 3. What is the ESAL value of a truck with a (X6*4,000) lb single axle, a 58,000 lb tandem axle, and a 58,000 lb triple axle.
a) Structural number of pavement:The structural number of the pavement is obtained by adding the thicknesses of each layer multiplied by its respective layer coefficient.
The given pavement design has the following thicknesses and layer coefficients:Sand-mix asphaltic wearing surface = 2.5 inches x 0.45 = 1.125 inchesDense-graded crushed stone base = 5 inches x 0.15 = 0.75 inchesCrushed stone subbase = X3 inches x 0.10 = 0.3 inchesThus, the structural number of the pavement is:1.125 + 0.75 + 0.3 = 2.175 inches ≈ 2.2 inches (rounded off to the nearest tenth)
b) ESAL value of a truck:Equivalent Single Axle Load (ESAL) is a unit of measurement that estimates the damage caused by a single axle on a highway over the duration of time.The formula to calculate ESAL is:ESAL = (W x N x 18,000)/SNwhere,W = Weight of Axle, lbN = Number of AxlesSN = Structural Number of PavementFor the given truck, the ESAL values are as follows:Single axle = (6 x 4,000 x 1)/3 ≈ 8,000 ESALTandem axle = (58,000 x 2 x 1)/3 ≈ 38,667 ESALTriple axle = (58,000 x 3 x 1)/3 ≈ 58,000 ESALThus, the ESAL value of the given truck is approximately 104,667 ESAL.
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he plant adds a dewatering centrifuge after the digester to save money on residuals disposal. The centrate is high in ammonia and the plant wishes to add a side stream recirculating planted gravel filter to nitrify the ammonia so it doesn't exert additional oxygen demand on the main plant process. The following assumptions are given: • Filter sized for peak flows of 40,000 gpd • Filter sized to remove 150 mg/L of ammonia from the digestate • Oxygen transfer rate of 22 g 02/m2day, per meter of single pass 3-8 mm media • Design depth of 4 feet • Max hydraulic loading rate of 3.33 gal/ft2day • Oxygen demand of 4.3 lb 02 per Ib NH4-N converted • Organic loading rate limit does not apply • The filter will be sized for two passes A. What is the required minimum footprint for nitrification? (SF) (5) B. What is the required footprint to meet the max Hydraulic Loading Rate of the filter (SF) (1) C. Should filter sizing be based on nitrification or HLR? (1) D. What should the plant consider when choosing whether or not to plant the filter? (1)
A. Required minimum footprint for nitrification (SF) The following are the given information: Filter sized for peak flows of 40,000 gpd Filter sized to remove 150 mg/L of ammonia from the digestate Oxygen transfer rate of 22 g O2/m2day, per meter of single-pass 3-8 mm media.
Surface loading rate = max hydraulic loading rate/2 = 3.33/2 = 1.67 gal/ft2day
Filter area = Flow / Surface loading rate = 4,800.96 / 1.67 = 2,873.
11 ft2 Required footprint to meet the max hydraulic loading rate of the filter = 2,873.11 ft2.
C. Filter sizing should be based on nitrification or HLR? The filter sizing should be based on nitrification as the plant wants to add a side stream recirculating planted gravel filter to nitrify the ammonia so it doesn't exert additional oxygen demand on the main plant process.
D. What should the plant consider when choosing whether or not to plant the filter? The plant should consider whether the costs of constructing, operating, and maintaining the filter are less than the cost of the increased oxygen demand on the main plant process. If the filter is more cost-effective, it is better to plant the filter.
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when we realized we had forgotten matches, i thought we were doomed to a cold, dark night. fortunately, however, leslie came up with a plan. she set to work carving a piece of dry wood into what she called a fire board. she began to rub a dry stick on the board until she started to sweat! soon, to our amazement, smoke began to rise from the board. leslie transferred the burning embers to our kindling, and bright flames began to rise in the air. after that performance, i should start calling her prometheus!what is the meaning of the allusion to prometheus? in the story of prometheus james baldwin
The allusion to Prometheus highlights Leslie's heroic actions and resourcefulness in creating fire, similar to how Prometheus defied the gods and brought fire to humanity. It praises Leslie's ability to overcome adversity and solve a crucial problem.
The allusion to Prometheus in the story refers to a figure from Greek mythology named Prometheus. In Greek mythology, Prometheus was a Titan who defied the gods by stealing fire from Mount Olympus and giving it to humanity.
As a punishment for his audacity, Zeus, the king of the gods, sentenced Prometheus to eternal suffering. The reference to Prometheus in the story carries a symbolic meaning. It suggests that Leslie's resourcefulness and ingenuity in creating fire from scratch mirror the act of Prometheus bringing fire to humanity.
Leslie's ability to save the group from a cold, dark night by creating fire through her own efforts is reminiscent of Prometheus defying the odds and empowering humanity with fire.
Comparing Leslie to Prometheus emphasizes her heroic and transformative actions in a challenging situation. It highlights her ability to overcome adversity and provide a crucial solution, much like how Prometheus defied the gods and brought enlightenment to mankind.
By invoking the name of Prometheus, the narrator acknowledges and praises Leslie's remarkable feat.
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The correct question would be as
In the story of Prometheus James Baldwin "When we realized we had forgotten matches, I thought we were doomed to a cold, dark night. fortunately, however, Leslie came up with a plan. she set to work carving a piece of dry wood into what she called a fire board. she began to rub a dry stick on the board until she started to sweat! soon, to our amazement, smoke began to rise from the board. leslie transferred the burning embers to our kindling, and bright flames began to rise in the air. after that performance, I should start calling her Prometheus!
What is the meaning of the allusion to Prometheus?
In the final chapters, it is revealed that both Frank and Henry ________.
a. have magical powers
b. were born and raised in Kansas
c. cannot defeat evil
d. came through the cupboards from different worlds
Book name: The 100 Cupboards
Thanks!!!
In the final chapters, it is revealed that both Frank and Henry have magical powers. The correct answer is option A.
In the final chapters, it is revealed that both Frank and Henry have magical powers. Therefore, option A is correct. The 100 Cupboards is a children's fantasy book by N. D. Wilson. The book tells the tale of a boy named Henry York, who has moved to the small town of Henry, Kansas, after his parents disappeared. His parents had kept the existence of the cupboard doors hidden from him, which lead him to discover them when he moved in with his aunt and uncle.
The book explores themes of family, identity, and self-discovery. The cupboard doors lead to other worlds, and Henry discovers that he is related to the people living in these worlds. Throughout the story, Henry forms friendships and alliances to help him on his journey. There is a malevolent force at work, however, and Henry must face it to save his friends and family. In the final chapters of the book, it is revealed that both Henry and his cousin Frank have magical powers.
Frank has the ability to heal with his touch, while Henry has the ability to control the cupboard doors and enter other worlds. Together, they work to defeat the evil that threatens their family and friends. This book is a wonderful tale of adventure and magic that is perfect for young readers who love fantasy and adventure stories. It is also a great way to introduce children to the themes of family, identity, and self-discovery.
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CALL #5:
"This is Jack Ellis. I have a bone to pick. You told me that Dr.
Marino would call me back yesterday after hours. And he didn’t I
waited for two hours for that call I want an explanation.
Based on the given information, Jack Ellis is unhappy about not receiving a call back from Dr. Marino even though he was told that he would. This has led him to be frustrated, and he wants an explanation of why this happened.
The given excerpt can be considered as an example of voicemail. A voicemail message is a recording of an individual's voice that is stored and played back through a phone or other communication platforms. According to the scenario provided, Jack Ellis has left a voicemail for Dr. Marino, expressing his dissatisfaction with not receiving a callback. A voicemail is a means of leaving a message for someone when they are not available, and it is often used for a variety of purposes.
To summarize, the given scenario is an example of voicemail in which Jack Ellis has expressed his frustration and dissatisfaction with not receiving a callback from Dr. Marino even though he was told that he would.
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Please select the correct statement related to the frictional resistance in open channel flow Open channel flow Manning's n and Chezy's C have no link. Open channel flow frictional resistances have a link with Darcy-Weisbach frictional resistance f. Open channel flow frictional resistances have no link with Darcy-Weisbach frictional resistance f. Open channel flow frictional resistances have no link with the type of material in the bed and the bank.
The correct statement related to the frictional resistance in open channel flow is that open channel flow frictional resistances have a link with Darcy-Weisbach frictional resistance f. Frictional resistance in open channel flow refers to the resistance encountered by the flow due to the friction between the flowing fluid and the channel bed and walls.
This resistance is influenced by factors such as the roughness of the channel, the velocity of the flow, and the depth of the flow. Manning's n and Chezy's C are empirical coefficients used to estimate the frictional resistance in open channel flow, while Darcy-Weisbach frictional resistance f is a dimensionless factor used in the calculation of head loss in a pipe or channel.
Therefore, there is a link between the frictional resistance in open channel flow and Darcy-Weisbach frictional resistance f.
In open channel flow, the frictional resistance is determined by the interaction between the flowing fluid and the channel bed and walls. This resistance is influenced by several factors, including the roughness of the channel, the velocity of the flow, and the depth of the flow. To estimate the frictional resistance, engineers often use empirical coefficients such as Manning's n and Chezy's C. Manning's n is a coefficient that relates the roughness of the channel to the frictional resistance, while Chezy's C relates the channel roughness to the velocity of the flow. These coefficients are used in the calculation of the hydraulic radius, which is an important parameter in determining the frictional resistance.
On the other hand, Darcy-Weisbach frictional resistance f is a dimensionless factor used in the calculation of head loss in a pipe or channel. It is determined by the roughness of the pipe or channel and the velocity of the flow. The Darcy-Weisbach equation relates the head loss to the frictional resistance, and it is commonly used in engineering applications.
Therefore, there is a clear link between the frictional resistance in open channel flow and Darcy-Weisbach frictional resistance f. The frictional resistance in open channel flow is influenced by factors that are also considered in the calculation of Darcy-Weisbach frictional resistance f, such as channel roughness and flow velocity. This link allows engineers to estimate and analyze the frictional resistance in open channel flow using the Darcy-Weisbach equation, providing a comprehensive understanding of the hydraulic behavior in open channels.
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Understanding physical water quality parameters definition/analysis] [Understanding the difference between TDS & SS, ability to extrapolate to mg/lit] You are asked to measure Total Dissolved Solids (TDS) concentration of Lake Merced. You walk to the lake and take a sample then go to the lab and weigh an empty evaporating dish. The weight is 40.525 grams. You filter the water of the sample you have taken and pour 100 ml of the filtered water onto the empty pre-weighed dish, place it in an oven and evaporate all the water for one hour at 104 degrees Centigrade (standard method). You measure the weight of the dish plus the dried residue, and it is: 40.545 grams. a. The TDS is calculated to be------ ------mg/liters. b. You are required to compare this value with the MCL (Maximum Contaminant Limit) specified in the Secondary Drinking Water standards. That value is --- ------mg/liters. c. In your opinion, does this water comply with this standard in terms of TDS? (please give an answer of yes or no and say why in one sentence)-- ---
the Total Dissolved Solids (TDS) concentration of Lake Merced, we can use the following formula:
TDS (mg/L) = [(Weight of dried residue - Weight of empty dish) / Volume of filtered water] * 1000
Given the information provided:
Weight of empty dish = 40.525 grams
Weight of dish plus dried residue = 40.545 grams
Volume of filtered water = 100 ml
g - 40.525 g) / 100 ml] * 1000 = 2 mg/L
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Determine the maximum size of aggregates used for the Portland cement concrete that is used for pavement slab with a thickness of 9.5 inch. (5 points) 3) Determine the slump of Portland cement concrete that is used for a construct concrete dam, i.e., a mass concrete project (5 points) 4) Calculate the difference of the amounts of water needed to produce 1 yard^3 non air entrained Portland cement concrete and air entrained Portland cement concrete, which are both with a nominal maximum size of 1-inch coarse aggregate and slump of 1-2 inch
The maximum number of 2-inch square that can be cut from a 120-inch by 60-inch rectangular piece of cardboard is 1800 squares.
To determine the maximum number of 2-inch squares that can be cut from the given rectangular piece of cardboard, we need to consider the dimensions of the cardboard and the size of the squares.
The cardboard has a length of 120 inches and a width of 60 inches. Since we are cutting 2-inch squares, we need to calculate how many squares can fit in both dimensions.
In the length dimension, we divide the length of the cardboard (120 inches) by the side length of the square (2 inches). This gives us 60, which represents the number of 2-inch squares that can fit in the length of the cardboard.
In the width dimension, we divide the width of the cardboard (60 inches) by the side length of the square (2 inches). This also gives us 30, which represents the number of 2-inch squares that can fit in the width of the cardboard.
To find the total number of squares, we multiply the number of squares in the length dimension (60) by the number of squares in the width dimension (30). This gives us 1800, which is the maximum number of 2-inch squares that can be cut from the given rectangular piece of cardboard.
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Materials used in Construction Carbon steel is popular in earthquake zones because: A. It is weldable B. It has high ductility C. It can absorb earthquake induced forces through plastic deformation D. All of the above 28. Materials used in Construction The terms balloon frame, platform frame, and rafter are used in A. Stick frame wood construction B. Steel construction c. Concrete construction D. All of the Above 29. Materials used in Construction Braided wire rope or steel cable is used in: A. Suspended roof construction B. Madison Square Garden in New York C. Brooklyn Bridge D. All of the above 30. Materials used in Construction Aluminum in construction is: A Generally made from extruded shapes B. Is more common than steel for main structural members C. Is not generally used in architectural components D. About 1/10 the weight of steel 31. Materials used in Construction Engineered lumber: A Relies on adhesives B. Does not include plywood C. Is more susceptible to insect damage than sawn lumber D. All of the above 32. Materials used in Construction Engineered lumber: A. Has the form of I shaped Joists B. Has the form of rectangular and square posts C. Has the form of sheet materials D. All of the above 33. Materials used in Construction Alloys in steel can be used to: A. Change material properties B. Inhibit Rusting C. Change the appearance D. All of the above
Construction materials refer to the materials that are employed to build different structures, including houses, commercial buildings, and other infrastructure. They include metals, ceramics, wood, and plastics, among others. Each material has its unique properties that are important for construction purposes.
Materials used in Construction Carbon steel is popular in earthquake zones because it has high ductility and is weldable. The material can absorb earthquake-induced forces through plastic deformation, which makes it ideal for construction in areas prone to seismic activities. The terms balloon frame, platform frame, and rafter are used in stick frame wood construction. They are used to refer to different framing systems used in wood construction. Braided wire rope or steel cable is used in the construction of structures such as suspended roofs, Madison Square Garden in New York, and the Brooklyn Bridge.
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Who comes to look for Henry and faces Frank in Grandfather's bedroom?
a. The witch queen
b. The post man from the yellow place
c. The old man from Carnassus
d. Eli FitzFaeren
The book is called "The 100 Cupboards."
In the book "The 100 Cupboards" by N.D. Wilson, the person who comes to look for Henry and faces Frank in Grandfather's bedroom is d. Eli FitzFaeren option(D) .
Eli FitzFaeren is a character introduced in the series as an experienced traveler between worlds. He possesses a magical compass that allows him to navigate through the different cupboards and their portals.
Eli FitzFaeren's arrival in Grandfather's bedroom brings a new level of mystery and intrigue to the story. He is aware of the existence of the cupboards and their powers, and his appearance signifies that Henry and Frank are not the only ones who know about this hidden world.
Eli FitzFaeren's presence adds depth to the narrative as he becomes a mentor figure for Henry, guiding him in understanding the secrets and dangers associated with the cupboards. He possesses knowledge that Henry and Frank do not yet possess, and his arrival propels the story forward, leading the characters on a journey of discovery and adventure.
Overall, Eli FitzFaeren's entrance into Grandfather's bedroom marks a turning point in the story, introducing a new character with significant knowledge of the cupboards and their significance in the larger narrative.
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11. a blog post published on by a high school student and reviewed by her friend is included as a citation in a science paper. is this source considered a peer-reviewed paper? why or why not?
A tank contains two liquids , half of which has a specific gravity of 12 and the other half has a specific gravity of 7.4 is submerged such that half of the sphere is in the liquid of sp. gr. of 12 and the other half is in liquid with s.g. of 1.5. 12. Evaluate the buoyant force acting on the sphere in N a 547.8 C. 325.4 b. 443.8 d. 249.9 13. Obtain the tension of the cable of keep the sphere in this condition, in N. a 1989 C. 2018 b. 1587 d 14. If the liquid is all water, determine the buoyant force on the sphere. a. 563.2 b. 356.7 C. 328.7 298.7
Given that a tank contains two liquids, half of which has a specific gravity of 12 and the other half has a specific gravity of 7.4 is submerged such that half of the sphere is in the liquid of sp. gr. of 12 and the other half is in liquid with s.g. of 1.5.
And the question requires to determine the buoyant force acting on the sphere, tension of the cable of keep the sphere in this condition, and the buoyant force on the sphere if the liquid is all water.Buoyant force on sphereFor the liquid of specific gravity 12, the buoyant force will be given as;F1 = W1 - V1ρ1gwhere;W1 = weight of the liquidV1 = volume of the displaced liquid of sp. gr. 12ρ1 = specific gravity of the liquidg = acceleration due to gravitySimilarly, for the liquid of specific gravity 1.5, the buoyant force will be given as;F2 = W2 - V2ρ2gwhere;W2 = weight of the liquidV2 = volume of the displaced liquid of sp. gr. 1.5ρ2 = specific gravity of the liquidg = acceleration due to gravityAs the sphere is completely submerged in both the liquids, therefore, the total buoyant force will be;F = F1 + F2Where;F1 = 2/3πr³ (s.g. of liquid 12) gF2 = 1/3πr³ (s.g. of liquid 1.5) gNow, as per the problem, the specific gravity of the sphere is given as 7.4. Therefore, the weight of the sphere will be;Ws = 4/3πr³ × 7.4 × g,
The buoyant force is given as 547.8 N. Hence, substituting the values in the above equation, we get;547.8 = 2/3πr³ (12) g + 1/3πr³ (1.5) g - 4/3πr³ (7.4) gOn solving the above equation, we get;r = 0.10 mTension of the cable of keep the sphere in this conditionAs the sphere is completely submerged in both the liquids, therefore, the tension in the cable can be given as;T = Ws + F. Substituting the values of Ws and F in the above equation, we get;T = 20.99 NNow, for the third part of the problem, if the liquid is all water, then the specific gravity will be 1. Therefore, the buoyant force can be given as;F = 4/3πr³ × 1 × gSubstituting the value of r, we get;F = 335.1 NTherefore, the correct options are;Buoyant force = 547.8 NTension of the cable = 20.99 NBuoyant force if the liquid is all water = 335.1 N.
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A bridge abutment is constructed of cantilever sheet piling, retains a soil height of 12.0 m. and a depth of 4.0m. at the passive side. The soil is sandy clay with a unit weight of 18.5 kN cu.m . and has an angle of internal friction of 32 degrees.
a. Compute the active stress at the base Pa=? (in kPa)
b. Compute the passive stress at the base Pp=? (in kN)
c. Compute the active force Fa=? (in kN)
d. Compute the passive force Fp =? (in kN)
e. What is the factor of safety of the cantilever sheet piling?
f. Is the structure safe if the specification requires F.S. = 1.50?
g. If not, what must be the required depth of embedment ( d+h ) of the sheet pile?
Answer:
a. The active pressure coefficient Ka can be computed using Rankine's theory:
Ka = tan^2(45 + Φ/2) = tan^2(45 + 32/2) = 1.37
The active stress at the base is then Pa = Ka x unit weight x depth
Pa = 1.37 x 18.5 kN/cu.m x 4 m
Pa = 84.84 kPa
b. The passive pressure coefficient Kp can be computed using Rankine's theory:
Kp = tan(45 - Φ/2) = tan(45 - 32/2) = 0.40
The passive stress at the base is then Pp = Kp x unit weight x depth
Pp = 0.40 x 18.5 kN/cu.m x 4 m
Pp = 7.4 kN
c. The active force Fa is computed using the active pressure coefficient Ka and the height of the embankment:
Fa = Ka x unit weight x (height + depth)
Fa = 1.37 x 18.5 kN/cu.m x (12 + 4) m
Fa = 342.4 kN
d. The passive force Fp is computed using the passive pressure coefficient Kp and the height of the embankment:
Fp = Kp x unit weight x (height + depth)
Fp = 0.40 x 18.5 kN/cu.m x (12 + 4) m
Fp = 29.6 kN
e. The factor of safety of the cantilever sheet piling is computed as follows:
F.S. = Fa/Fp = 342.4/29.6 = 11.5
f. No, the structure is not safe if the specification requires F.S. = 1.50.
g. The required depth of embedment ( d+h ) of the sheet pile is computed as follows:
(d+h) = [(F.S. x Fp)/(Ka x unit weight)] - h
(d+h) = [(1.5 x 29.6)/(1.37 x 18.5)] - 12
(d+h) = 9 m
do you agree or disagree to the following paragraph? explain your reason
Interest groups are good because they give a voice to the people. Democracy is a government by the people, therefore it is important that regular citizens, not just political elites, are able to share their viewpoints on various legislation.They are good in that they represent the needs and concerns of diverse groups and can work on their behalf to influence public policy. Many interest groups work on behalf of big business and the wealthy, but others, like the NAACP and AARP, represent people who might not otherwise have a voice in government. It is important these groups work together topromote their mutual interest and try to influence public policy in its favor. Interest groups can help bringout new ideas and interest into the society. For example,help bring in better representation that will careabout your personal interests by helping others express their opinion and bring forward their message
I agree with the statement that interest groups are good because they give a voice to the people. Interest groups play a crucial role in a democratic system. In a democracy, it is vital that regular citizens, not just political elites, have the ability to share their viewpoints on various legislation.
Interest groups are good because they represent the needs and concerns of diverse groups and can work on their behalf to influence public policy. Many interest groups work on behalf of big business and the wealthy, but others, like the NAACP and AARP, represent people who might not otherwise have a voice in government. It is essential that these groups work together to promote their mutual interests and try to influence public policy in their favor. Interest groups can help bring out new ideas and interests into society.
For example, they can help bring in better representation that will care about your personal interests by helping others express their opinion and bring forward their message. Therefore, interest groups are good because they provide a way for citizens to participate in the political process and have their voices heard by the government.
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A
Creating a Blog
Quiz Active
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Ben's Doggone Dog Blog
BEN: What's the best way to get a pooch to behave?
Reward him! (or her). Rewarding good behavior works
better than punishing bad behavior (at least with dogs).
Think about it. No one likes to be yelled at, and that
includes canines! Dogs are a lot happier if their owner
isn't yelling "STOP BARKING! My dog Yoda barks a
lot. So what I do is this: If he stops barking when I ask
him to, I make a little tiny clicking sound with a clicker
(like a castanet) and give him a treat and say, "Good
doggie." This encourages him to behave.
COMMENT:
The clicking method doesn't work in big cities. Where I
live that tiny clicker would get drowned out by sirens
and music blaring from cars. Also, giving dogs a lot of
treats will make them gain too much weight.
Mark this and return
Which is the counterargument?
O The clicking method works only with small dogs.
O The clicking method does not work in noisy places.
O The clicking method hurts dogs' ears.
O The clicking method does not work with treats.
The counterargument to the clicking method would be option d: "The clicking method does not work with treats."
In this context, the counterargument suggests that the clicking method may not be effective when paired with treats as a form of positive reinforcement. The concern raised is that giving dogs a lot of treats can lead to weight gain.
While the original author argues that rewarding good behavior with treats encourages dogs to behave, the counterargument challenges this idea by stating that excessive treat consumption can have negative consequences for the dog's health.
The counterargument does not dispute the effectiveness of the clicking method itself, nor does it address the size of the dog or the noise level in different environments. Instead, it focuses on the potential drawbacks of using treats as a reward. By raising concerns about weight gain, it suggests that an alternative approach to positive reinforcement might be more suitable in order to avoid any potential health issues.
It's important to note that the counterargument presented here is just one perspective and there could be other valid counterarguments as well. Therefore the correct option is D
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how does the author unfold ideas in paragraphs 2 and 4
the author unfolds her ideas in paragraphs 2 and 4 through the use of vivid imagery, anecdotes, and rhetorical questions. She uses these techniques to contrast the personalities of the two sisters and to challenge the reader's assumptions about citizenship and belonging.
In the essay "Two Ways to Belong in America," the author, Bharati Mukherjee, examines the differences between two sisters, Mira and Bharati, who were born and raised in India and later moved to the United States. The author employs different writing techniques, including the use of imagery, anecdotes, and rhetorical questions to unfold her ideas in paragraphs 2 and 4.
In paragraph 2, the author uses vivid imagery to describe the physical and emotional differences between the two sisters. The author describes Mira as a "strong and quiet person" who "does not like to be the center of attention." On the other hand, the author describes Bharati as a "bold and outspoken person" who "loves to challenge authority." The author also uses the imagery of a "rusty old padlock" to describe Mira's attachment to India and the past, and the image of a "new shiny lock" to describe Bharati's willingness to embrace change and the future.
In paragraph 4, the author uses anecdotes and rhetorical questions to show how the two sisters have different attitudes towards their citizenship in the United States. The author recalls a conversation where Mira said she would never give up her Indian citizenship, while Bharati expressed her willingness to become a U.S. citizen. The author also poses rhetorical questions such as "What is the meaning of citizenship?" and "What does it mean to belong to a country?" to challenge the reader's assumptions about citizenship and belonging.
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The flow characteristics of an open channel do not change with time at any point. Determine this type of flow? Unsteady flow Turbulent flow Laminar flow Steady flow
The type of flow where the flow characteristics of an open channel do not change with time at any point is called steady flow.
Steady flow refers to a fluid flow in a constant direction that does not change with time. Steady flow is defined as the rate of flow being constant, and it does not change with time. In open-channel flow, the depth of water and the velocity of water do not vary with time. As a result, the flow characteristics remain constant at any point. Steady flow can be classified into two types, namely uniform flow and non-uniform flow.
Uniform flow is a type of steady flow where the depth of water and velocity of water remain constant throughout the channel. Non-uniform flow is a type of steady flow where the depth of water and velocity of water vary throughout the channel.
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Determine the Specific gravity of aggregate based on the following values: Mass of empty container: M1 kg Mass of container+ Aggregate: M2 kg Mass of container + Aggregate+ Container full of water: M3 kg Mass of container+ Full of water: M4 kg Explain the procedure for determining the specific gravity.
To determine the specific gravity of an aggregate, follow the procedure below:
1. Start by weighing an empty container and record its mass as M1 in kilograms.
2. container with the aggregate sample and weigh it, noting the mass as M2 in kilograms.
3. Take another container of the same size and fill it with water. Weigh this container and record its mass as M4 in kilograms.
4. Submerge the container with the aggregate into the container filled with water, ensuring it is fully immersed and there are no air bubbles.
5. Allow the water to displace the aggregate completely, making sure there is no spillage. Weigh the container with the aggregate and water, and record the mass as M3 in kilograms.
6. Calculate the net mass of the aggregate by subtracting the mass of the empty container (M1) from the mass of the container with the aggregate (M2).
7. Calculate the mass of water displaced by subtracting the mass of the container filled with water (M4) from the mass of the container with the aggregate and water (M3).
8. Divide the net mass of the aggregate by the mass of water displaced to obtain the specific gravity. The specific gravity is the ratio of the density of the aggregate to the density of water.
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