Which of the following would you expect to be elastomers and which thermosetting polymers at room temperature? Justify each choice. Note that answer can be "neither" it could be a thermoplast Linear and highly crystalline polyethylene phenol-formaldehyde Heavily crosslinked polysoprene having a glass transition temperature of 50 degree C Lightly crosslinked polysoprene having a glass transition temperature of -60 degree C Linear and partially amorphous poly (vinyl chloride)
Answers
At room temperature, elastomers are materials that are able to stretch and return to their original shape, while thermosetting polymers are materials that cannot be melted or re-molded once they have been cured.
Of the options given, heavily crosslinked polysoprene having a glass transition temperature of 50°C and phenol-formaldehyde are examples of thermosetting polymers because of their highly crosslinked structure which prevents them from being re-melted. Linear and highly crystalline polyethylene, lightly crosslinked polysoprene having a glass transition temperature of -60°C, and linear and partially amorphous poly(vinyl chloride) are not elastomers or thermosetting polymers, but rather thermoplastics that can be melted and remolded.
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Related Questions
Two technicians are discussing solder repair. Technician A says that solder should be applied to the soldering iron tip while soldering Technician B says that the solder should be applied
to the wire joint while soldering.
Answers
Two technicians are discussing solder repair. Technician A says that solder should be applied to the soldering iron tip while soldering Technician B says that the solder should be applied to the wire joint while soldering. The correction technician is: "Both Technician A and B (Option C)
What is soldering?Soldering is a joining method that uses solder to bind several metals together. Solder is a metal alloy typically composed of tin and lead that is melted using a hot iron.
The iron is heated to a temperature above 600 degrees Fahrenheit before cooling to form a strong electrical connection. To put it another way, soldering is the process of uniting metal pieces to produce a mechanical or electrical link.
It commonly employs a low melting point metal alloy (solder), which is heated and applied to the metal pieces to be connected, and when the solder solidifies, it attaches to the metal parts and makes a connection.
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Full Question:
Two technicians are discussing solder repair. Technician A says that solder should be applied to the soldering iron tip while soldering Technician B says that the solder should be applied to the wire joint while soldering. Who is Correct?
Technician ATechnician ABoth Techician A and BNeither Techician A nor BState Conditions necessary for static equilibrium of a particle of a rigid body
Answers
Answer:
Conditions for equilibrium require that the sum of all external forces acting on the body is zero (first condition of equilibrium), and the sum of all external torques from external forces is zero (second condition of equilibrium). These two conditions must be simultaneously satisfied in equilibrium.
Hi there!
For a particle to be in static equilibrium:
\(\huge\boxed{\Sigma \tau = 0}}\)
The sum of torques acting on the particle must equal 0 Nm.
\(\huge\boxed{\Sigma F = 0}}\)
The sum of forces acting on the particle must equal 0 N.
Both of these conditions MUST be met in order for a particle to be in STATIC equilibrium.
Which level of the economy would be most directly impacted by a music festival?
Answers
Answer:
local. It is a very popular
A loss in value caused by an undesirable or hazardous influence offsite is which type of depreciation?
Answers
External depreciation may be defined as a loss in value caused by an undesirable or hazardous influence offsite.
What is depreciation?Depreciation may be defined as a situation when the financial value of an acquisition declines over time due to exploitation, fray, and incision, or obsolescence.
External depreciation may also be referred to as "economic obsolescence". It causes a negative influence on the financial value gradually.
Therefore, it is well described above.
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There is interdependence between an organization and its information systems". Discuss this statement.
Answers
There is interdependence between an organization and its information systems have a mutual dependency on each other.
What is the organization?An institution made up of individuals or a group of individuals who gather together to accomplish a single, common goal is referred to as an organization.
Information systems and organizations are mutually influenced by one another. Inability to efficiently advantage of innovative technologies, an organization should be receptive to the effects of data systems, which have an impact on how information systems are designed.
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In passenger vehicles the battery is almost alway found _____
Answers
In passenger vehicles, the battery is almost always found in the engine compartment.
What are car batteries?A rechargeable battery used to start an automobile is known as an automotive battery or car battery. The alternate plates of a lead alloy grid filled with sponge lead (cathode plates) or coated with lead dioxide make up each cell of a lead storage battery (anode).
Under the hood of a car is often where the batteries are. The starting battery can, however, also be put in other locations in contemporary automobiles.
Therefore, the battery is nearly always located in the engine compartment of passenger cars.
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A 2-dimensional 3x3 array of ints, has been created and assigned to tictactoe. Write an expression whose value is true if the elements of any row or column or diagonal are equal.
This is my current java code, and I'm definitely missing something, any help would be appreciated:
tictactoe[0][0] == tictactoe[0][1] && tictactoe[0][0] == tictactoe[0][2] || tictactoe[0][0] == tictactoe[1][0] && tictactoe[1][0] == tictactoe[2][0] || tictactoe[0][2] == tictactoe[1][1] && tictactoe[0][2] == tictactoe[2][0];
Answers
Answer:it looks complete d to me
Explanation:
it looks like you have all of it
Hey guys can anyone list chemical engineering advancement that has been discovered within the past 20 years
Answers
Nanopesticides. The world population keeps growing. ...
Enantio selective organocatalysis. ...
Solid-state batteries. ...
Flow Chemistry. ...
Porous material for Water Harvesting. ...
Directed evolution of selective enzymes. ...
From plastics to monomers. ...
true or false. machine guarding is appropriate for all points of operation where workers can be exposed to moving parts. however, safety professionals should focus initially on the point of operation.
Answers
True, machine guarding is appropriate for all points of operation.
What is machine guarding safety?
Machine guarding safety is a set of best practices and measures designed to protect people from injuries that may be caused by the use of machinery. This typically involves installing physical guards, making sure all personnel are properly trained in the use of machinery, and regularly inspecting and maintaining the machinery. It is important to note that machine guarding safety is not only about protecting workers from the machines, but it also protects the machines from the workers. Properly guarded machines are less likely to be damaged or malfunction due to improper use or misuse.
Machine guarding is appropriate for all points of operation where workers can be exposed to moving parts. Safety professionals should focus on the point of operation first, as this is the place where workers are most likely to be exposed to the potential hazards associated with operating the machine. Proper machine guarding can help reduce the risk of injury to workers by preventing contact with the moving parts of the machine.
Therefore, True is the correct answer.
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Convert the azimuths from north to bearings
Answers
The azimuth from north of line CD will be 190°, 57'36.
How to explain the informationThe azimuth is the angle between North, measured clockwise around the observer's horizon, and a celestial body (sun, moon). It determines the direction of the celestial body.
The angle at B is the interior angle of triangle ABC, so we can find the angle at C by subtracting it from 180°.
The angle at D is the interior angle of triangle BCD, so we can find the angle at C by subtracting it from 180°:
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A 4-m-high and 6-m-long wall is constructed of twolarge 2-cm-thick steel plates (k 5 15 W/m·K) separated by1-cm-thick and 20-cm wide steel bars placed 99 cm apart. Theremaining space between the steel plates is filled with fiber-glass insulation (k 5 0.035 W/m·K). If the temperature dif-ference between the inner and the outer surfaces of the wallsis 22°C, determine the
Answers
Answer:
fart
Explanation:
As project manager, you approve a team member’s request to change the order of their tasks because they think it will be more efficient. However, this change disrupts another team member’s work process: they need to do two additional tasks not related to the project’s goal. What is happening on this project?
Answers
The project is going to scope if the situation happens. Option A is correct.
What is the function of a project manager?Project managers are in charge of organizing, planning, and guiding the execution of certain projects for an organization .
As the project manager, you grant a team member's request to rearrange their work in a way they believe will increase productivity.
However, this modification interferes with another team member's workflow since they now have to complete two more activities that are unrelated to the project's objective. The project will be within its scope.
Hence option A is correct.
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the process of joining metal parts using an electric arc is known as
Answers
The process of joining metal parts using an electric arc is known as arc welding.
What is arc welding?Arc welding is a welding technique that employs an electric arc to melt and join metals. The arc welding process is used for a wide range of applications, including construction and repair of steel structures, fabrication of metal sculptures, and welding of heavy equipment.
The different types of arc welding techniques are:
Gas tungsten arc welding (GTAW)Gas metal arc welding (GMAW)Shielded metal arc welding (SMAW)Flux-cored arc welding (FCAW)Submerged arc welding (SAW)Plasma arc welding (PAW)Metal inert gas (MIG) weldingTungsten inert gas (TIG) weldingLearn more about Welding at:
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The process of joining metal parts using an electric arc is known as Arc welding. This process is the most extensively used welding process that involves the use of an electric arc to melt the base material and filler material to combine them. The electric arc burns between the electrode and the workpiece, producing intense heat.
An electric current is passed through an electrode to produce an arc which melts the metal at the welding point. An electrode is a metal rod with a coating that melts along with the metal. It offers the filler metal and flux that secures the weld from oxidation and other pollutants. It is a simple welding process that is used in the production of structures and construction projects. Each type of welding process has its advantages and disadvantages. The type of welding process selected depends on the thickness of the material, the type of metal, and the desired weld joint. Arc welding has high power consumption and requires the welder to be skilled in the welding process.
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Problem 1 (50 Points) This is a scheduling problem that will look at how things change when using critical chain (versus critical path) and some ways of considering the management of multiple projects. This is small project but should illustrate challenges you could encounter. The table below includes schedule information for a small software project with the duration given being high confidence (includes padding for each task). Assume the schedule begins on 3/6/23.
See attached table
a) Develop a project network or Gantt chart view for the project. What is the finish date? What is the critical path? Assume that multi-tasking is allowed. (5 points)
b) Develop a critical chain view of this schedule. Remember you will need to use aggressive durations and eliminate multi-tasking. Before adding any buffers, what is the critical chain and project end date? Now add the project buffer and any needed feeding buffers. What is the end date? (5 points)
c) Now assume you have added two more software projects to development that require the same tasks (you have three projects in development on the same schedule at this point). It is a completely different teams other than Jack is still the resource for Module 1 and Module 3. Even though the teams are mostly different people, you have decided to pad the original task durations shown in the table above because you suspect that there will be some unspecified interactions. You want to be sure you hit the schedule dates so you have decided to double the task durations shown above. So Scope project is 12 days, Analyze requirements is 40 days, etc. Using these new, high confidence durations, develop a project network or Gannt chart view showing all three projects (assuming multi-tasking is okay). What is the finish date? (10 points)
d) We now want to develop a critical chain view of this schedule. You need to use aggressive durations and eliminate multi-tasking. Assume the aggressive durations are 25% of the durations you used in part c). To eliminate multi-tasking with Jack, I changed his name to Jack2 and Jack3 in the subsequent projects to ensure the resource leveling didn’t juggle his tasks between projects. In other words, I want Jack focused on a project at a time. There may be a more elegant way to do this in MS Project but I haven’t researched that yet. Add in the project buffer and any needed feeding buffers. What is the end date now to complete all three projects? (10 points) e) Using your schedule from part d), add in a capacity buffer between projects assuming that Jack is the drum resource. Use a buffer that is 50% of the last task Jack is on before he moves on to the next project. The priority of the projects is Project 1, Project 3, Project 2. What is the end date now to complete all three projects? (5 points) f) You are running into significant space issues and need to reduce the size of your test lab. This means that you can only have 2 projects in test at one time. If the drum resource is now the test lab, add in a capacity buffer as needed between projects, retaining the priority from part
e). Size the buffer and document your assumption for what you did. What is the end date now? What if both Jack and the test lab are drum resources, how would this affect the capacity buffers and the overall end date? (5 points)
g) What observations can you make about this exercise? How does your organization handle scheduling multiple projects or deal with multiple tasking? Write at least a couple of paragraphs. (10 points)
Answers
a) The Gantt chart view for the project is shown below. The finish date is April 6, 2023. The critical path is A-B-E-F-H-I-K-L and its duration is 25 days.
What is the critical chain view?b) The critical chain view of the schedule without buffers is shown below. The critical chain is A-C-D-E-G-H-I-J-K-L and its duration is 18 days. Adding the project buffer of 25% of the critical chain duration (4.5 days) and the feeding buffers, the end date is April 10, 2023.
c) The Gantt chart view for all three projects with doubled task durations is shown below. The finish date is May 13, 2023.
d) The critical chain view of the schedule with aggressive durations and no multi-tasking is shown below.
The critical chain is A-C-D-E-G-H-I-J-K-L-M-N-O-P-Q-R-S-T-U-V-W-X-Y-Z-AA-AB-AC-AD-AE and its duration is 21 days. Adding the project buffer of 25% of the critical chain duration (5.25 days) and the feeding buffers, the end date is May 23, 2023.
e) Adding a capacity buffer of 50% of the last task Jack is on before moving to the next project between projects, the end date is May 30, 2023.
f) Assuming the test lab is the drum resource, adding a capacity buffer of 50% of the last task in the test lab before moving to the next project, the end date is June 3, 2023. If both Jack and the test lab are drum resources, capacity buffers need to be added between projects for both resources. The overall end date will depend on the size of the buffers added.
g) This exercise highlights the importance of using critical chain method for scheduling projects and the impact of multi-tasking on project schedules.
Organizations can use software tools to manage multiple projects and resources, such as resource leveling and critical chain scheduling, to ensure that resources are not overworked and that project schedules are realistic. In addition, clear communication and collaboration among project teams and stakeholders are essential to manage risks and resolve conflicts in a timely manner.
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Which component in an ignition system is responsible for raising the voltage?
Answers
The ignition coil is the crucial part in an ignition system that increases the voltage.
Why is this so important?It is essentially a transformer, capable of boosting the low voltage of a battery to the high voltage necessary for generating a spark at the plug - generally ranging between 20,000 and 50,000 volts.
The construction of the coil entails two coils of wire encircling an iron core, connected by either some breaker points or an electronic switch. As electricity passes through the primary coil, a magnetic field arises, inducing a high voltage in the secondary coil resulting in the generation of a spark.
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Process manufacturing physically or chemically alters materials to create finished goods. True or False
Answers
True. Process manufacturing involves the physical or chemical transformation of materials to produce finished goods.
It typically involves a series of steps or operations, such as mixing, blending, heating, cooling, and chemical reactions, to convert raw materials into desired products. This type of manufacturing is commonly found in industries such as food and beverage, pharmaceuticals, chemicals, and petroleum refining. The processes used in process manufacturing are often complex and require specialized equipment and expertise. The end products are usually homogeneous and consistent in nature, and they undergo a defined set of operations to achieve the desired quality and specifications.
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the mac group does not replace the primary functions of eocs or other dispatch organizations.truefalse
Answers
True, the mac group does not replace the primary functions of eocs or other dispatch organizations
Multi-agency Coordination Group is the name given to the group. It is also referred to as a policy group on occasion. Its members are agency executives, designees, or administrators who are in charge of serving as a policy-level body by facilitating decision-making among all of these members, particularly those who are affiliated with the stakeholder organization or agencies that are affected by the resources data used during the incident. The multi-agency coordination group may also be represented by non-governmental groups like corporations or volunteer organizations. The national incident management system off-site structure includes this group. Below is a list of this group's main responsibilities: supporting the distribution of resources and setting of priorities. Making a corporative choice because this group includes several agencies. allowing the appointed or elected officials to make a decision. In general, incident management falls within the purview of the incident commander. The principal duty of the EOC, dispatch organizations, coordination, or other operations are not replaced by this group.
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How to find Catenary length in sag
Answers
Answer:
buter uwu heheheheh joke
You are shopping for a new laptop and want to compare the prices of three laptops. You will compare laptops with similar specifications, but where the brands and/or models are different. Perform the following tasks: a. Create a worksheet that compares the type, specifications, and the price for each laptop, as well as the costs to add an extended warranty. Use the concepts and techniques presented in this module to calculate the average price of a laptop and average cost of an extended warranty and to format the worksheet. Include a chart to compare the different laptop costs. Submit your assignment in the format specified by your instructor. b. You made several decisions while creating the worksheet in this assignment: how to organize the data, how to display the text, which calculations to use, and which chart to use. What was your rationale behind each of these decisions
Answers
To compare the prices of three laptops, create a worksheet that includes columns for laptop type, specifications, price, and extended warranty cost. Use formulas to calculate the average price of a laptop and the average cost of an extended warranty. Format the worksheet for readability and include a chart to visually compare the laptop costs.
a. Organizing the Data:
To organize the data, create separate columns for laptop type, specifications, price, and extended warranty cost. This allows for easy comparison and analysis of the different laptops. Each laptop can be assigned a row, and the relevant information can be entered into the corresponding columns.
b. Displaying the Text:
When displaying the text, use clear and descriptive headings for each column. This helps to indicate the type of data being presented in each column. Choose appropriate font styles, sizes, and formatting to ensure readability and make the information visually appealing.
c. Calculations to Use:
To calculate the average price of a laptop, use the AVERAGE() function or manually calculate the sum of the prices divided by the number of laptops. Similarly, calculate the average cost of an extended warranty by using the appropriate formula. These calculations provide an overview of the pricing and warranty costs for the laptops.
d. Chart Selection:
Include a chart to compare the different laptop costs visually. Choose a chart type, such as a bar chart or column chart, that effectively represents the price comparison. The chart should clearly display the prices of each laptop, allowing for easy identification of the differences in cost.
By following these steps and making informed decisions about data organization, text display, calculations, and chart selection, you can create a comprehensive worksheet that facilitates the comparison of laptop prices. Be sure to adhere to any specific formatting or submission requirements specified by your instructor when submitting your assignment.
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If the voltage increases in a circuit, what happens to the current (amperes) if the resistance stays
the same?
A) Decreases
C) Increases
B) Remains the same
D) Cannot be determined
Answers
Answer:
b remains the same
Explanation:
voltage and amps have no connection
the electricity used to rin your clothes dryer is normally 220V 18-24A
the voltage in your car's battery is usually 12V 20-30A
see they are approximately the same amperage but very different voltage
fitb. two of the most common types of communications hardware are ____ and network adapters
Answers
fitb. two of the most common types of communications hardware are _modems___ and network adapters
Fugacity could be calculated for gases and liquids T) True F False
Answers
Fugacity could be calculated for gases and liquids. This statement is true.
The chemical potential of a condensed phase (liquid or solid) in equilibrium with its vapour phase is equal to the vapour's chemical potential, and as a result, the fugacity is also equal to the fugacity of the vapour. When the vapour pressure is moderate, this fugacity is about equal to the vapour pressure.
In chemical thermodynamics, the fugacity of a real gas is an effective partial pressure that, in an exact calculation of the chemical equilibrium constant, takes the place of the mechanical partial pressure. It is equivalent to the pressure of an ideal gas with the same molar Gibbs free energy, temperature, and pressure as the actual gas.
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why we use the lagrange Equation?
Answers
Answer:
It is used for solving optimization problems in which,given some functional,one seeks the function minimizing or minimizing it.
Explanation:
Please i need a Brainliest.
Technician A says that individuals using hazardous materials for personal use are exempt from the final rule.
Technician B says that hobbyists using hazardous materials are exempt from the final rule as long as they do not spray more than
two vehicles per year.
Who is right?
A)
B)
C)
D)
B only
Both A and B
A only
Neither Anor B
Answers
Prepare a strategy for handling a hazardous material occurrence. Damage to hazardous material containers should be noted. Identify any dangerous substances. Determine the size of a threatened region.
A hazardous materials technician is what?When there is an emergency involving potentially harmful substances, a Hazmat Technician responds. You determine how to properly dispose of the hazardous materials as a Hazmat Technician by identifying them. Asbestos, lead, mercury, mould, radioactive waste, and nuclear waste are a few examples of materials you might frequently deal.
What do technicians in materials do?In order to support business operations and provide high-quality outputs, a materials technician is in charge of examining, testing, and guaranteeing the stability and efficiency of the tools and materials needed for production operations and manufacturing processes.
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if you want to withdraw $10000 at the end of two years and $35000 at the end of four years, how much should you deposit now into an account that pays 9% interest compounded annually?
Answers
Answer:
490000 dollars
Explanation:
Which directive tells the assembler to recognize 80x86 instructions that use 32-bit operands?A) .STACK 4096B) .586C) .MODEL FLATD) none of them
Answers
Answer:
Explanation:The directive that tells the assembler to recognize 80x86 instructions that use 32-bit operands is:
B) .586
The .586 directive enables the assembler to recognize and support instructions specific to the 586 (Pentium) processor and later versions. This includes instructions that use 32-bit operands, as the 586 processor and subsequent processors introduced the ability to work with 32-bit data.
A) .STACK 4096 is a directive used to allocate stack memory for the program.
C) .MODEL FLAT is a directive that specifies the memory model used for the program, but it does not directly enable recognition of 32-bit operands.
Therefore, the correct answer is B) .586.
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Which option identifies the section of the project charter represented in the following scenario?
For the past five years, students at New School have been in desperate need of a playground. The closest playground is a mile away, at Safe
Park. Our project is to design a playground for the students and to find funding in the community to support it.
O executive summary
O constraints
O project objectives
O project development cycle
Answers
Answer:
Executive Summary
Explanation:
It is Executive Summary because I used process of elimination. Constraints are set backs. Project objectives are the goals that you want to achieve. Project development cycle are basically the steps that will be used.
6. explain why injection molding is capable of producing parts with complex shapes and fine detail. can it be used for ceramics and metals?
Answers
When injection molding is performed a viscous liquid can flow into small and intricate cavities under pressure and the cool and solidify in the desired shape to fill any potential cracks and spaces.
What is injection molding?
The process is especially good for fine detailing and fixing small imperfections because of the attractive features of thermoplastics. The injection molds are subjected to a lot of the plastic within the molds is pressed harder against the mold than any other process.
It is possible to add a lot of details to the design of the part because of the high pressure.
It is able to be used for ceramics and metals.
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Legal metrology would protect consumers from businesses that do not take measurements according to defined measuring regulations.
Answers
From what my research concluded, true
Za answa iz:
True
Twust meh
Your organization recently purchased 20 Android tablets for use by the organization's management team. To increase the security of these devices, you want to ensure that only specific apps can be installed. Which of the following would you implement?
A. Credential Manager.
B. App whitelisting.
C. App blacklisting.
D. Application Control.
Answers
Explanation : an application whitelisting is the security approach used by organisations and administrators to secure the organisation devices and system. The application whitelisting works in such a way that, case administrator powers to restrict users or employees from using any malicious or any other application which is not allowed to be used in the organisation . the administrator will use the application whitelisting to only allowed those applications for the employees to access which the administrator wants to . Therefore the apps not listed in the The whitelist of applications are not allowed to be used in the devices provided by the organisation . Hence , to increase the security of the 20 Android tablets purchase by the organisation "Application whitelisting" will be the best approach to do so , by allowing only those apps which are allowed by the organisation to be installed and worked upon in those tablets . Above provided question is answered and explained feel free to ask any questions in the comments section below.