Q5- b-Engineer A is a principal in an environmental engineering firm and is requested by a developer client to prepare an analysis of a piece of property adjacent to a wetlands area for potential development as a residential condominium. During the firm’s analysis, one of the engineering firm’s biologists reports to Engineer A that in his opinion, the condominium project could threaten a bird species that inhabits the adjacent protected wetlands area. The bird species in not an "endangered species," but it is considered a "threatened species" by federal and state environmental regulators.
In subsequent discussions with the developer client, Engineer A verbally mentions the concern, but Engineer A does not include the information in a written report that will be submitted to a public authority that is considering the developer’s proposal.
What are Engineer A’s ethical obligations under these facts? Provide your answers by consider the effects of engineering practices on "health, environment, and safety" for both cases. Choose one of the case.
Answers
Answer:
Based on the provided information, Engineer A is faced with an ethical dilemma. The engineer has been informed by one of the firm's biologists that the proposed residential condominium project could threaten a bird species inhabiting the adjacent protected wetlands area, but the engineer did not disclose this information in the written report that will be submitted to a public authority that is considering the developer’s proposal.
From an ethical standpoint, Engineer A has a duty to act in the best interests of the public and to ensure that the health, environment, and safety (HES) of individuals and the community are protected. In this case, Engineer A has a responsibility to disclose the potential threat to the bird species to the public authority, as failing to do so could result in harm to the environment and the wildlife. By not disclosing this information, Engineer A may be putting the environment and public health at risk.
Therefore, it is important for Engineer A to consider the effects of their engineering practices on HES and disclose all relevant information to the public authority. Not disclosing information regarding potential environmental threats is a breach of ethical obligations, and Engineer A has a moral duty to report the potential threat to the public authority to ensure that appropriate measures are taken to protect the environment.
In conclusion, Engineer A must fulfill their ethical obligations and disclose all relevant information regarding potential environmental threats to the public authority. This will ensure that appropriate measures are taken to protect the environment and wildlife, and will demonstrate a commitment to upholding ethical principles in engineering practices.
Explanation:
Related Questions
which statement best describes the velocity of a bus traveling along its route
Answers
Answer:
Option A is the correct answer. The bus traveled at 50 mph for 20 minutes
Explanation:
The complete question is
Which of the following choices best describes velocity of a bus traveling along its route? A. The bus traveled at 50 mph for 20 minutes. B. The airplane traveled southwest at 280 mph. C. The car went from 35 mph to 45 mph. D. The train made several stops, with an average rate of 57 mph.
Solution
In option A the bus is travelling at a speed of 50 miles per hour. This describes the velocity of bus along its route.
The other options are about the velocity of airplane, car and train
In the following Java statement what value is stored in the variable name? String name = "John Smith": John Smith The memory address where "John Smith" is located name The memory address where name is located
Answers
The value stored in the variable name is "John Smith".
How is this so?In the given Java statement, the variable name is defined as a String type and assigned the value "John Smith".
The variable name will store the actual text "John Smith", representing a person's name. It does not store thememory address where "John Smith" is located or the memory address of the variable name itself.
In Java, variables like "name" are used to store and manipulate data. Also note that Variables are important in Java for storing and manipulating data, enabling reusability, flexibility, and efficient memory allocation.
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why is it difficult to dissolve cellulose in solvent that dissolve petroleum based polymers
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The crystallinity of cellulose as well as its polar qualities makes it less difficult to dissolve. It has a three-dimensional hydrogen bond (H-bond) arrangement with the hydroxyl group connected to each polymer chain. On the other hand, Hydrocarbon polymers are nonpolar, and nonpolar solvents are used to dissolve them.
What exactly is cellulose?Cellulose is an organic molecule with the formula n that is a polysaccharide made up of a linear chain of hundreds to thousands of β linked D-glucose units. Cellulose is a structural component of the major cell wall of green plants, many algae, and oomycetes.
Cellulose is the principal component present in plant cell walls and aids in the plant's stiffness and strength. Although cellulose cannot be digested by humans, it is an essential source of fiber in the diet. Cellulose is utilized in the production of clothing and paper.
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Firm A notices that Firm B is making a profit by producing footballs. There is nothing stopping Firm A from entering the football market, so it does. Holding all else constant, the number of firms in the market will
Answers
If Firm A enters the football market where Firm B is already making a profit, the number of firms in the market will increase.
When Firm A enters the football market, it adds another player to the industry, increasing the number of firms operating in the market. This increase in the number of firms can have several implications.
Firstly, increased competition among the firms may lead to a decrease in profit margins for each individual firm. With more firms vying for the same customer base, they may engage in price competition or offer additional features to attract customers, potentially lowering their profit levels.
Secondly, the increased number of firms may also lead to an expansion in the overall supply of footballs in the market. This could result in an oversupply situation if demand remains constant. In such cases, firms may have to lower their prices to clear excess inventory, further impacting their profitability.
In conclusion, when Firm A enters the football market, the number of firms operating in the industry increases. This can lead to intensified competition, potential profit margin reductions, and a possibility of oversupply in the market.
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Outline the course of study Brent might follow in high school if he is interested in earning an engineering degree in college.
Answers
Answer:
Science, Technology, Engineering and Mathematics courses
Explanation:
The background and foundational prerequisite and knowledge required to traverse through college education is being acquired at high school. Most of the what is going to be needed based on one's aspiring career or course of choice would have been introduced to students. This is why it is important to prepare ahead in other to keep focus.
For the pursuit of an engineering degree in college, this falls under the Science, Technology, Engineering and Mathematics curriculum. Hence, courses relating to science, technology and engineering and mathematics curriculum.
Determine the maximum stress in the bar if the bar is designed with grooves having semicircular portions of radius shown in the figure. (Round the final answer to one decimal place.) 10 mm, as 100 mm 150 mm 18 mm MPa The maximum stress in the bar is
Answers
The maximum stress in the bar is 118.2 MPa.
Given the following diagram: Given, the bar is designed with grooves having semicircular portions of radius: 10 mm, 100 mm, 150 mm, and 18 mm. From the above diagram, we can see that due to the application of force, the bar tends to bend as shown below: From the above diagram, it can be observed that there will be maximum stress at the topmost edge of the bar, i.e., at point A. The maximum stress (σ) in a beam is given by:σ = My/I, where, M is the maximum bending moment acting on the beam, and I is the moment of inertia of the beam's cross-sectional area about the neutral axis. Substituting the values of M and I from the above diagram, we get:σ = 15 × 120/(20 × 25³)σ = 118.2 MPaTherefore, the maximum stress in the bar is 118.2 MPa (approx).
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Is a diesel truck less expensive to drive than a gas truck?
Answers
Answer:
Typically, diesel trucks cost more than those with gas engines, especially when you're first buying them, as diesel is usually featured as an add-on for gas-powered cars. Diesel add-ons can cost over $5,000 for midsize trucks and around $10,000 for heavy-duty trucks.
Explanation:
Make me brain pls
define a class named history with the following public interface: class history { public: history(int nrows, int ncols); bool record(int r, int c); void display() const; }; the constructor initializes a history object that corresponds to an arena with nrows rows and ncols columns. you may assume (i.e., you do not have to check) that it will be called with a first argument that does not exceed maxrows and a second that does not exceed maxcols, and that neither argument will be less than 1. the record function is to be called to notify the history object that a poisoned carrot has been dropped at a grid point that does not currently have a poisoned carrot. the function returns false if row r, column c is not within the bounds implied by the history constructor; otherwise, it returns true after recording what it needs to. this function expects its parameters to be expressed in the same coordinate system as an arena (e.g., row 1, column 1 is the upper-left-most position). the display function clears the screen and displays the history grid as the posted programs do. this function does clear the screen, display the history grid, and write an empty line after the history grid; it does not print the press enter to continue. after the display (that should be done somewhere else in the program). (note to xcode users: it is acceptable that clearscreen() just writes a newline instead of clearing the screen if you launch your program from within xcode, since the xcode output window doesn't have the capability of being cleared.)
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The logical point where different software entities communicate is known as a public interface in computer science.
What is meant by public interface?The logical point where different software entities communicate is known as a public interface in computer science. A single computer, a network, or a variety of other topologies may be used for the entities to interact with one another.A class's public properties and methods (variables or fields you may read the values of or assign to) form its public interface (functions you can call). Therefore, the task is to develop something that is not a subclass of LinkedList.For instance, protected methods could be accessed by creating a subclass.Due to the fact that an interface is a contract meant to be utilized by other classes, interface methods are implicitly public in C#. Moreover, when you implement these methods, you have to declare them to be public rather than static.To learn more about public interface refer
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Tammy, age 18 months, has a beach ball and a Nerf ball, and she knows what a basketball and a tennis ball are. When she encounters a golf ball for the first time, she mentally adds this new example to her "ball" scheme. Adding another example to an existing scheme is a process that Piaget called ________.
Answers
Answer:
Explanation:
The process that Piaget called "adding another example to an existing scheme" is called assimilation. Assimilation refers to the cognitive process of incorporating new information or experiences into existing mental schemas or frameworks. In this case, Tammy assimilates the new example of a golf ball into her existing "ball" scheme, expanding her understanding of what falls under the category of a ball.
Two technicians are discussing what it means when you do a scratch cut and get a cut that does not go completely around the circumference. Technician A says that it may represent drum runout. Technician B says that it may represent incorrect mounting on the lathe. Who is right
Answers
It is essential to consider both drum runout and mounting issues as potential causes and inspect and rectify them accordingly to ensure accurate and complete cutting during the machining process.
Both Technician A and Technician B could be partially correct.
Technician A is correct in suggesting that a scratch cut that does not go completely around the circumference may indicate drum runout. Drum runout refers to the condition where the surface of the drum is not perfectly round, causing uneven contact between the brake lining and the drum. When performing a scratch cut, if the cutting tool fails to make a complete cut around the drum, it suggests that the drum surface is not uniformly cylindrical, possibly due to drum runout.
Technician B is also correct in stating that incorrect mounting on the lathe can result in a scratch cut that does not go completely around the circumference. If the drum is not mounted securely or centered properly on the lathe, it can lead to an uneven cut. Improper mounting can cause misalignment between the cutting tool and the drum, resulting in an incomplete cut.
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water "bubbles up" h2 = 9 in. above the exit of the vertical pipe attached to three horizontal pipe segments. The total length of the 1.75-in.- diameter galvanized iron pipe between point (1) and the exit is 21 inches. Determine the pressure needed at point (1) to produce this flow.
Assume h3 = 18 in.
Answers
The pressure needed at point (1) to produce the flow where water "bubbles up above the exit of the vertical pipe attached to three horizontal pipe segments is 0.750 psi.
What is Bernoulli's equation?The Bernoulli's equation for incompressible fluid can be given as,
\(P_1+\dfrac{1}{2}\rho v_1^2+\rho gh_1=P_2+\dfrac{1}{2}\rho v_2^2+\rho gh_2\)
Here, ρ is density of fluid, g is acceleration due to gravity, (P) is the pressure v is velocity, h is height of elevation and subscript (1 and 2) is used for point 1 and 2.
Water "bubbles up" h2 = 9 in. Above the exit of the vertical pipe attached to three horizontal pipe segments.
The total length of the 1.75-in.- diameter galvanized iron pipe between point (1) and the exit is 21 inches. h3 = 18 in.
Reynolds number is,
\(R_e=\dfrac{V_3D}{v}\\R_e=\dfrac{4.01\dfrac{0.75}{12}}{1.21\times10^{-15}}\\R_e=2.07\times10^4\)
The formula for the ratio of pressure to radius, when pressure and velocity at point 2 is zero can be given as,
\(\dfrac{p_1}{r}=z_2\left(f\dfrac{l}{d}+\sum k_L\right)\dfrac{v^2}{2g}-\dfrac{v_1^2}{2g}\)
Here, f=0.039 and ∑K(L)=4.5. Put the values,
\(\dfrac{p_1}{r}=\dfrac{7}{12}\left(0.03\dfrac{21}{0.75}+4.5-1\right)\dfrac{4.01^2}{2\times32.2}\\\dfrac{p_1}{r}=1.73\rm\; ft\)
Put the value of r we get,
\(p_1=62.4\times1.73\\p_1=108\rm\; ib/ft^2\\p_1=0.750\rm\; psi\)
The pressure needed at point (1) to produce the flow where water "bubbles up above the exit of the vertical pipe attached to three horizontal pipe segments is 0.750 psi.
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Discuss why TVET Institutions need advice of the business community in order
to provide good programmes.
Answers
Answer:
Without the indispensable advice of the business community, TVET Institutions will be unable to cover the gap in career knowledge required by the business community. To develop workers who possess the knowledge and skills required by today's business entities, there is always the continual need for the educational institutions (gown) to regularly meet the business community (town). This meeting provides the necessary ground for the institutions to develop programs that groom the workforce with skills that are needed in the current workplace. Educational institutions that do not seek this important advice from the business community risk developing workers with outdated skills.
Explanation:
TVET Institutions mean Technical and Vocational Education and Training Institutions. They play an important role in equipping young people to enter the world of work. They also continue to develop programs that will improve the employability of workers throughout their careers. They regularly respond to the changing labor market needs, adopt new training strategies and technologies, and expand the outreach of their training to current workers while grooming the young people for work.
Which option identifies the section of a project charter represented in the following scenario?
Updated POS terminals will be available to the following five departments by July 31, 2015.
O project assumptions
O project deliverables
O project constraints
O project requirements
Answers
Multiple Choice
Which of the following analogies best describes the relationship between urban planning and zoning?
Zoning is like a hammer because it is used as a tool for urban planning.
Zoning is like a butterfly because it is the final form of urban planning.
Zoning is like a stop sign because it is an obstacle to urban planning.
Zoning is like an egg because it is the process from which urban planning emerges.
Answers
Answer:
Zoning is like a hammer because it is used as a tool for urban planning.
ABCTech is a manufacturer of industrial lasers and has developed a new, patented technology that allows its customers to manufacture their products more precisely with a higher level of consistency and at a lower cost than they could previously. ABCTech's executives believe that no rivals have a similar technology and that it would be very difficult for rivals to copy this technology since the benefits of the new technology can only be realized within ABCTech's system, which includes processes that are protected by trade secrets, making it difficult for rivals to understand the relationship between the company's new technology and its competitive advantage. (1) Identify the four questions represented in the VRIO framework that one must ask about a resource or capability to determine its competitive potential. (2a) Do you think ABC Tech (new technology) has a competitive advantage? (2b) Why (in terms of VRIO framework)
Answers
Based on these factors, ABCTech's new technology appears to have a competitive advantage according to the VRIO framework.
1) The four questions represented in the VRIO framework are as follows:
- Value: Does the resource or capability enable the company to exploit opportunities or mitigate threats in the external environment? In other words, does it create value for the company?
- Rarity: Is the resource or capability rare or unique among competitors? If it is widely available or easily imitated, it may not provide a competitive advantage.
- Imitability: Is the resource or capability difficult to imitate or replicate? If rivals can easily obtain or copy it, it may not sustain a competitive advantage.
- Organization: Is the company organized to exploit the resource or capability effectively? This question assesses whether the company has the necessary organizational structure, processes, and culture to leverage the resource or capability successfully.
2a) Based on the information provided, it is likely that ABCTech has a competitive advantage with its new, patented technology. The technology allows customers to manufacture products more precisely, with higher consistency, and at a lower cost. The executives believe that no rivals have a similar technology, and it would be difficult for them to copy it due to the unique relationship between ABCTech's technology and its protected processes.
2b) From a VRIO framework perspective:
- Value: The new technology brings value by enabling customers to manufacture their products more precisely, consistently, and at a lower cost. It addresses a need in the market and provides a competitive edge for ABCTech.
- Rarity: ABCTech's executives believe that rivals do not possess a similar technology, indicating rarity. The combination of the patented technology and protected processes creates a unique offering that sets ABCTech apart.
- Imitability: The executives also believe that it would be difficult for rivals to copy the technology due to the complexity of ABCTech's system, including protected processes and trade secrets. This suggests that the technology has a certain level of imitability protection.
- Organization: The information provided does not explicitly discuss ABCTech's organizational readiness, but it does mention that the company's processes are protected by trade secrets, indicating a level of organizational effort to safeguard the technology and maintain its competitive advantage.
However, it is important to note that this assessment is based on the information provided, and a more comprehensive analysis would require further evaluation of the industry, market dynamics, and potential future developments.
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In a water jet macning, the mass flow rate of water is found to be 0.05 kg/s. consider water density as 996 kg/m and 0.02 cm is the diameter of the hole from which water jet comes out. neglect all the losses and potential head differences. determine the minimum pressure at which water suppling pump must operate.
Answers
The minimum pressure at which the water-supplying pump must operate is approximately 2.45 x 10⁶ Pa or 2450 bar.
Solution:To calculate the minimum pressure at which the water-supplying pump must operate, we need to use the formula for the volumetric flow rate of a fluid:
Q = A * v
where,
Q =the flow rate
A = the cross-sectional area of the hole
v = the velocity of the fluid.
We can use this formula to determine the velocity of the water, and then use the Bernoulli equation to determine the minimum pressure.
From the question:
ṁ=0.05 kg/s
ρ= 996 kg/m
d= 0.02 cm
Calculating the area of the hole:
A = (π/4) * (d²)
where,
d is the diameter of the hole, and pi is approximately 3.14.
d = 0.02 cm = 0.0002 m
A = (3.14/4) * (0.0002 m)² = 1.57 x 10⁻⁷ m²
Using the mass flow rate to calculate the velocity of water:
Q = ṁ / ρ
where,
Q = the volumetric flow rate
ṁ = the mass flow rate
ρ = the density of water.
Q = (0.05 kg/s) / (996 kg/m³)
Q = 5 x 10⁻⁵ m³/s
Using the area of the hole to find the velocity of water
v = Q / A
v = (5 x 10⁻⁵ m³/s) / (1.57 x 10⁻⁷m²)
v = 318.8 m/s
Using the Bernoulli equation to find the pressure:
P = Patm + (1/2) * ρ * v²
where,
P = the pressure
Patm = the atmospheric pressure
ρ =the density of water
v = the velocity of the water.
P = Patm + (1/2) * (996 kg/m³) * (318.8 m/s)²
Hence, the minimum pressure at which the water-supplying pump must operate is approximately 2.45 x 10⁶ Pa or 2450 bar.
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What's the difference between a scale and a scale drawing?
Answers
scale is used to make a scale drawing. every scale drawing has it's sclae written for proper interpreatation
What is a scale?
A Scale is the ratio of a sketched model and the actual measuremnts while a scale drawing is a sketched model that was carefully made such that every measurement in the sketch could be represented to the site or actual mearuement through the scale with very little or no error
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To make a scale drawing, scale is used. For correct interpretation, every scale drawing has its own scale inscribed on it.
What exactly is a scale?A scale drawing is a sketched model that has been meticulously prepared so that every measurement in the sketch may be conveyed to the site or actual measurement through the scale with very little or no mistake.
A weighing apparatus or equipment with two pans of equal weight hung from its ends —usually used in the plural, either pan or tray of a balance scale.
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A horizontal poly crystalline solar panel module has to be investigated by natural cooling. For crystal silicon, the thermal coefficient approximately 0.0045/K is used. Investigate the effect of air velocity on the cooling performance of PV panels at 0-5 m/s air velocities, 25-40 ºC ambient temperatures, and 400-1000 W/ m2 solar radiation
Answers
Solution :
It is given that :
Thermal coefficient = 0.0045/K
Ambient temperature, \($T_a = 25 - 40^\circ$\)
air velocity, v = 0-5 m/s
Solar radiation, \($G= 400-100 \ W/m^2$\)
\($P=50 \ W$\)
Model calculations :
Cell temperature (\($T_c$\))
\($T_c = T_a + \left(\frac{0.25}{5.7+3.8 \ v_w}\right) G$\)
where \($ v_w - v_a = $\) wind speed / air speed
∴ \($T_c = 2 \pi + \left(\frac{0.25}{5.7+3.8 \times 1}\right) \times 400$\)
\($T_c = 35.526 ^\circ$\)
\($\Delta T = T_c -25$\)
= 35.526 - 25
= 10.526 K
Thermal coefficient = 0.0045 x 10.526
= 0.04737
Pv power = \($(1 -C_T) \times P \times \frac{G}{1000}$\)
\($=(1 -0.04737) \times 50 \times \frac{400}{1000}$\)
= 17.0526 W
If the angle of incidence of light traveling through air, striking water, is 30 degrees, what is the angle of refraction?.
Answers
Consequently, the angle of refraction for light passing through air and striking water is 22.1 degrees.
Refraction is the process by which a wave changes direction while transitioning from one medium to another in physics. When light strikes a medium on a plane, reflection is simply the act of the light bouncing back. When light passes through a medium and shifts, causing it to bend, the process is known as refraction. The medium receives back the light that entered it. Since the speed of light differs between the two media (1u2=u1), refraction occurs when light travels through them. Even at a metal mirror, refraction happens. Only a thin layer of the field inside the metal can be found close to the surface.
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Describe value engineering and its role in target costing
Answers
Value engineering is a systematic approach that aims to improve the value of a product, project, or process by analyzing its functions and identifying opportunities for cost reduction while maintaining or improving its performance and quality. It involves a collaborative effort of cross-functional teams, including engineers, designers, managers, and other stakeholders.
The role of value engineering in target costing is to help achieve the desired cost target for a product or project. Target costing is a cost management approach that sets the desired cost based on market conditions and customer requirements. Value engineering supports target costing by finding ways to optimize the value delivered to customers while controlling costs.
Here's how value engineering contributes to target costing:
Function analysis: Value engineering starts with a thorough analysis of the product's functions and their importance to customers. By understanding the value provided by each function, teams can prioritize them based on customer needs and focus efforts on cost reduction for non-critical functions.
Cost analysis: Value engineering involves a detailed analysis of the costs associated with various components, materials, and processes involved in the product or project. It helps identify areas where costs can be reduced without compromising the essential functions or quality.
Creativity and innovation: Value engineering encourages creativity and innovative thinking to find alternative designs, materials, or processes that can deliver the required functions at a lower cost. It involves brainstorming sessions and idea generation to explore different possibilities.
Trade-off analysis: Value engineering facilitates trade-off analysis between cost, performance, and quality. It helps identify trade-offs that can be made to reduce costs while still meeting customer expectations. By understanding the impact of different design or process changes on cost and performance, informed decisions can be made.
Collaboration and continuous improvement: Value engineering promotes collaboration among cross-functional teams to identify cost-saving opportunities. It encourages open communication and the sharing of ideas to drive continuous improvement in cost management. It also fosters a culture of innovation and cost-consciousness throughout the organization.
Overall, value engineering plays a vital role in target costing by helping teams identify cost reduction opportunities, optimize the value delivered to customers, and achieve the desired cost targets without compromising quality or customer satisfaction. It ensures that the product or project remains competitive in the market while meeting cost objectives.
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cheminform abstract: mild and chemoselective lactone ring-opening with (tms)ona. mechanistic studies and application to sweroside derivatives
Answers
This article discusses the use of (tms)ona (a specific reagent) as a mild and chemoselective method for lactone ring-opening reactions.
What are Lactones?
Lactones are a type of organic compounds with a cyclic ester functional group and ring-opening reactions refer to the process of breaking the ring structure to produce a linear compound.
The use of (tms)ona as a reagent for this process has been shown to be mild, meaning that it does not lead to significant side reactions or damage to sensitive functional groups, and chemoselective, meaning that it preferentially reacts with lactones over other functional groups.
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Identify the different types of strain. Buckling Bending Shear Axial Static Torsional Dynamic Centrifugal QUESTION 2 The amount of deformation a material experiences due to an applied force is called
Answers
Strain refers to the deformation experienced by a material under applied force. Various types of strain include axial, bending, shear, torsional, buckling, and centrifugal strain. Strain is measured as the ratio of change in length to the original length.
The different types of strain are as follows:
Axial strain: An axial strain is defined as the deformation that occurs parallel to the applied load. Bending strain: The deformation caused in a straight beam due to the applied load is known as bending strain. Shear strain: The deformation that happens when a material is subjected to a force that is parallel to the surface area of the material is known as shear strain. Torsional strain: Torsional strain is defined as the deformation that occurs in a material due to a twisting force. Buckling strain: Buckling strain happens in a material when it is subjected to a compressive load that is too large. Centrifugal strain: Centrifugal strain is defined as the force that arises when a material is exposed to a centrifugal force.The types of strain are used in materials science to understand how a material reacts to external forces such as compression, tension, and shear.
The amount of deformation a material experiences due to an applied force is called strain. Strain is measured using the formula (change in length/original length).
The resulting value is dimensionless and is expressed in terms of percentage or decimal form. It is the ratio of change in length to the original length.
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When you use a thick syringe to drive a thin syringe, you lose strength but gain distance or do gain both strength and distance
Answers
According to Lebogang syringe, you gain distance but lose strength when you use a thick syringe to "drive" a thin syringe.
What is the syringe's operating principle?A sliding plunger pump called a syringe is designed to fit securely inside a tube. A liquid or gas can be drawn into or released from the syringe through an aperture at the open end of the tube by pulling or pushing the plunger within the exact cylindrical tube, or barrel.
What does Pascal law on needles mean?A force was generated inside the first syringe, the tubing, and the second syringe when we depressed the first plunger. Pascal's law states that a fluid's pressure in a closed container is uniform throughout the entire container.
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What is the equivalent inductance (in Henries) for three inductors in parallel having values of L1=2 Wb/Amp, L2=4.2 Wb/Amp and L3=1.3 Wb/Amp?
Answers
An electrical circuit component known as an inductor is equivalent inductance (measured in Henries) for three parallel inductors with values of L1=2 Wb/Amp, L2=4.2 Wb/Amp, and L3=1.3 Wb/Amp.
To calculate the equivalent inductance in a parallel circuit, use the inductors in parallel calculator. To find out how to calculate the overall inductance in a circuit and about the parallel combination of inductors, keep reading. You will also discover an illustration of how to use the parallel inductance calculator to get the total inductance in a parallel circuit.
You can use the inductors in series calculator to determine the equivalent inductance in a series circuit.
When all of the coils' ends are connected to one point and the other end of all the coils is connected to another point, we can say that a group of coils (or inductors) are connected in parallel. These two are connected to the AC source.
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Air flow at 15 m/s past a thin flat plate. Estimate the distance x from the leading edge at which the boundary layer thickness will be (a) 10 cm and (b) 1 mm. Use a transition Reynolds number of 5 x 105.
Answers
Answer:
a) x = 5.7791 m ( this a turbulent flow )
b) x = 0.04 m ( this is a Laminar flow )
Explanation:
For Air, take
p = 1.2 kg/m³ and u = 1.8×10⁻⁵ kg/m³
So for A , x = 10 cm
Guess turbulent flow;
(Sturb / x) = (0.16 / (p∪x / u)^1/7)
we substitute
(0.1/x = 0.16) / ( 1.2 × 15 × x / 1.8×10⁻⁵)^1/7
x = 5.7791 m
CHECK
Re = (1.2 × 15 × 5.7791) / 1.8×10⁻⁵ = 5.779×10⁶
Therefore this a turbulent flow
for B, x = 1mm
Guess Laminar flow
(S-laminar / x) = ( 5 / (Reₓ)^1/2)
x = (Stutb)²p∪ / 23u
x = ((0.001)² × 1.2 × 15) / (25 × 1.8×10⁻⁵)
x = 0.04 m
CHECK
Re = (1.2 × 15 × 0.04) / (1.8×10⁻⁵)
= 40000
Therefore this is a Laminar flow
what are advantages of using sinusoidal Voltages
Answers
Answer:
The advantages of using a pure sine wave for your appliances and machinery are as follows: Reduces electrical noise in your machinery.
translates to no TV lines and no sound system hum.
Cooking in microwaves is quicker.
Explanation:
The smoothest signal is a sine wave, and sine waves are the basis of all functions.
Every other continuous periodic function is a basis function, which means that it can be described in terms of sines and cosines.
For instance, using the Fourier series, I can describe the fundamental Sinusoidal frequency and its multiples in terms of the triangle and square waves.
After a strong storm, a worker does not realize that a power transmission line has fallen on his car and is electrocuted while opening the car door. What is this an example of?.
Answers
Answer:
This is an example of the conduction of electricity through metal. Free moving electrons on the car will conduct a electric field when a voltage is applied to the car; in this case the transmission line, and would flow through the metal to the door handle causing electrocution.
we wish to design a closed circuit supersonic wind tunnel that produces a mach 2.8 flow at standard sea level conditions in the test section and has a mass flow rate of air of 15 kg/s. calculate the necessary reservoir pressure and temperature, the nozzle throat area, the test section area, and the diffuser throat area. assume a worst case stagnation pressure loss in the test section based on a normal shock.
Answers
How fast is the fastest wind tunnel?
The JF-22 wind tunnel, which would be the fastest in the world, would be situated in the Huairou District of northern Beijing and be capable of simulating flights at speeds of up to 10 km/s, or 30 times the speed of sound.
What is wind tunnel?They measure conditions that affect aircraft and other equipment, such as elevation, drag, shockwaves, and others. that speed against the wind. Additionally, those tunnels can assist engineers in figuring out how wind interacts with stationary objects like buildings and bridges and finding ways to strengthen and make them safer.Learn more about wind tunnels here:
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A crawler tractor costs $650,000, has an estimated salvage value of $80,000, and has a 5-year life. Find the annual depreciation and book value at the end of each year using the double-declining-balance method of depreciation.
Answers
Answer: Therefore, the annual depreciation for each year using the double-declining-balance method is $228,000 for the first three years, $194,000 for the fourth year, and $0 for the fifth year. The book value at the end of each year is as follows: $422,000 at the end of year 1, $194,000 at the end of year 2, $228,000 at the end of year 3, $0 at the end of year 4, and $80,000 at the end of year 5.
Explanation: To calculate the annual depreciation using the double-declining-balance method, we first need to calculate the depreciation rate, which is double the straight-line depreciation rate. The straight-line depreciation rate is calculated as follows:
Depreciation rate = (Cost - Salvage value) / Useful life
Depreciation rate = ($650,000 - $80,000) / 5 years = $114,000 per year
Double-declining-balance depreciation rate = 2 x straight-line depreciation rate = 2 x $114,000 = $228,000 per year
Using this depreciation rate, we can calculate the annual depreciation and book value at the end of each year as follows:
Year 1:
Depreciation = $228,000
Book value = Cost - Depreciation = $650,000 - $228,000 = $422,000
Year 2:
Depreciation = $228,000
Book value = Cost - Depreciation = $650,000 - $228,000 - $228,000 = $194,000
Year 3:
Depreciation = $194,000
Book value = Cost - Depreciation = $650,000 - $228,000 - $194,000 = $228,000
Year 4:
Depreciation = $228,000
Book value = Cost - Depreciation = $650,000 - $228,000 - $194,000 - $228,000 = $0
Year 5:
Depreciation = $0
Book value = Salvage value = $80,000
1) Relative to electrons and electron states, what does each of the four quantum numbers specify?
2) Cite two important quantum mechanical concepts associated with the Bohr model of
the atom.
3) Cite two important additional refinements that resulted from the Wave-mechanical
atomic model.
Answers
Answer:
Cite two important additional refinements that resulted from the Wave-mechanical
atomic model.