The temperature at which the diffusion coefficient have a value of 2.1×10-5 m 2 /s is -47078 K.
Using the relation;
logD = logDo - Ea/2.303RT
D = diffusion coefficient
Do = preexponential
Ea = activation energy
R = gas constant
T = temperature
Substituting values;
log(2.1×10-5)= log (1.1×10-5 ) - 253,300/2.303 × 8.314 × T
log(2.1×10-5) - log (1.1×10-5 ) = - 253,300/2.303 × 8.314 × T
log[2.1×10-5/1.1×10-5] = - 253,300/2.303 × 8.314 × T
0.281 × (2.303 × 8.314 × T) = - 253,300
T = - 253,300/2.303 × 0.281 × 8.314
T = -47078 K
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Why are you asked to draw a sketch of a Bridge-Design on a graph sheet/A4 sheet?
Engineers or architects can be asked to draw a sketch of a bridge-design on a graph sheet or A4 paper to communicate their ideas and scale their drawings.
Architectural sketches are about the communication of ideas. Engineers and architects use hand sketching to clarify elements of the design to the contractor or client.
It should be noted that drawings can also be drawn on a graph sheet or A4 paper to represent the detail before it's eventually constructed.
Scale drawings are used for the illustration of items that are not convenient to draw their actual size. In the construction industry, scales are used depending on the nature of the drawing. Drawings can be made on a graph or A4 paper due to the ease of printing, reproducing, and resizing the drawings.
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What is the document used when there is a potential of fire
Answer:
A fire safety plan.
Explanation:
A fire safety plan is a detailed document that covers all aspects of fire safety for a specific building or property.
If a 9V battery produces a current of 3 A through a load, what is the resistance of the load
3 ohms hope this helps :D ❤
Answer:
3 ohms
Explanation:
noooo plssschvwekjshdjkshdjkshdjksahdk
Answer:
chehdhfhfhd
Explanation:
fjrjshrhdhr
Question 2
Sarah was recently promoted to a managerial position at her industrial engineering company. With her new role, she is now responsible for overseeing the company's production factory, meaning approximately 50 factory workers now report to her. Although Sarah previously worked as an engineer and did not have any experience running a factory, she is excited to begin her new position. At the end of her first day, Sarah is confused to see her factory workers continuing to work well past the end of their 8-hour shift. She then goes to the factory supervisor (who reports to her) to express concern because the factory does not have the budget to pay so many workers overtime. The supervisor smiles at Sarah and explains that the factory meets production goals by making the factory workers work off the clock. The workers are well aware of this expectation and went along with it in order to keep their jobs. Sarah is shocked to learn this illegal practice had become part of the company culture, but the supervisor explains that the company's CEO (who is Sarah's boss) is well aware of this expectation.
What shouldSarah do ? (15)
Analyzing the information from the case above, the ideal would be Sarah to schedule a meeting with your boss to expose the facts and seek a solution, as this is an ethical dilemma that she became aware of and as a new manager she will have to deal with it.
She became aware of an illegal practice that has become part of the company's culture and that her boss is aware of this illegality.
Sarah needs to be aware that her talk about the possibility of changing company policy and complying with ethics could jeopardize her job.
But on the other hand, if Sarah's boss does not accept to change the company's ethical parameters, she will also be running the risk of being part of this illegal act and damaging her reputation.
Therefore, the best option for Sarah is to be honest and talk to her boss about the situation.
In this way, it can help workers receive their rights, if their argument is accepted, and transform the company into an ethical place with a culture focused on the development and compliance with ethics and legislation.
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Un buque de 500ton de desplazamiento tiene un KG de 5m y un KM de 7.5, la embarcación recibe un carga de 700ton con un KG de 4m. Calcule la cantidad de carga que puede llevar para que el buque navegue con un GM positivo de 0.3 y proponga la posición del centro de gravedad de la carga.
Answer:
500 kG con 0 .3Explanation:
700 gramosWhat output will come for the expression (4.00/(2.0+2.0)) answer
people working in the maintenance, installation and repair pathway work from home.
a) true
b) false
Define exemption, deviation, or a waiver.
Define each one and then provide an example of each that includes the regulation, a summary of the requester’s rationale and justification, the FAA position, and then your position on the FAA decision. Your examples can be for a manned or unmanned aircraft.
PARKING LOT PANELBOARD FEEDER DEMAND LOADING:
A parking lot panelboard is supplying 62 parking stalls on 15 amp circuits which are
restricted or controlled. Determine the total calculated demand load in kW for the
FEEDER conductors supplying the panelboard.
The calculated demand load is ____ kW
Answer:
77kw
Explanation:
just add them
Ben leads a team of a few engineers at a robotics firm. A couple of them would like to improve their skills by taking additional courses in specialized areas. What are these courses in specialized areas called? A. technical certificate courses B. undergraduate certificate courses C. master’s degree courses D. online courses
Answer:
i dont know
Explanation:
To improve their skills by taking additional courses in specialized areas is termed technical certificate courses. The correct option is A.
What are technical certification courses?Technical information is given to you in technical certification courses. Technical details are the procedures used to carry out work. Password management is one of the crucial skills that regular computer users must master in order to carry out their tasks without compromising security.
People who have finished a specialized course of study connected to certain vocational abilities are given technical certifications. A certificate of this kind is evidence that the person has been exposed to the knowledge necessary for performing tasks connected to particular professions or jobs,
Hence, the right option would be A.
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thanh thẳng AD có kích thước và chịu lực như hình.biết P1 = 10kn, p2=5kn,M=15kn*m,a=2m.Hãy xách định phản lực liên kết tại A,b
The cable connecting the winch A to point B on the railroad car in figure is wound in at the constant rate of 2 m. When θ = 60◦ , determine (a) the velocity of B and ˙θ; and (b) the acceleration of B and ¨θ. Neglect the radius of the winch.
Answer:
This question comprises two independent parts, (a) and (b) (a) In the diagram below, the cable connecting the winch A with point B on the railway carriage is being wound in at a constant rate of 2 m/s. Determine, for the instant in time when the angle θ= 60° (i) The velocity vector of the railway carriage (ii) The acceleration vector of the railway carriage The radius of the winch can be considered negligible. (2 marks) (3 marks) (b) The diagram below shows two rotating ‘driving links, OA and BC, connected by a telescoping link AB. Determine the angular velocity vector of the telescoping link AB when it is in the position shown if the driving links have the angular velocities indicated in the diagram. 150 2 rad/s 45 165 Dimensions in millimeters 60 0 2 rad/s
The cable connecting the winch A to point B on the railroad car in figure is wound in at the constant rate of 2 m. When θ = 60◦ 2 rad/s.
What is the dimension?A measurement is a degree of a bodily variable (with out numerical values), whilst a unit is a manner to assign quite a number or dimension to that measurement. For example, period is a measurement, however it's miles measured in devices of feet (ft) or meters (m).
This query incorporates impartial parts, (a) and (b) (a) In the diagram under, the cable connecting the winch A with factor B at the railway carriage is being wound in at a consistent price of two m/s. Determine, for the immediate in time whilst the attitude Theta = 60◦ The speed vector of the railway carriage (ii) The acceleration vector of the railway carriage The radius of the winch may be taken into consideration negligible. (2 marks) (three marks) (b) The diagram under indicates rotating 'using hyperlinks, OA and BC, linked with the aid of using a telescoping hyperlink AB. Determine the angular speed vector of the telescoping hyperlink AB whilst it's miles withinside the function proven if the using hyperlinks have the angular velocities indicated withinside the diagram. one hundred fifty 2 rad/s 45 a hundred 65 Dimensions in millimeters 60 zero 2 rad/s.Read more about the constant :
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vết nứt tế vi là gì?
To reduce the pressure in the fuel line the forklift operator should
Answer:
Shut off cylinder valve before turning off forklift.
Explanation:
To reduce the pressure in the fuel line, the forklift operator should keep the engine running with the garage door closed and sealed.
What is a forklift operator?In warehouses and on construction sites, a forklift driver is in charge of delivering, moving, loading, and unloading a range of commodities.
Always release the pressure in the LPG lines before disconnecting while filling LPG tanks. To accomplish this, shut off the tank valve and let the engine run until the lines are completely empty.
Before opening the valve on the new tank, shut off the engine and make sure the LPG tanks are fastened to the forklift.
Therefore, the forklift driver should keep the engine running with the garage door closed and sealed in order to lower the pressure in the fuel line.
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Who should inspect a crane?
1Employer
2Experience workers
3Foreman
4Competent person
Answer:
4. Competent person
Explanation:
A competent person should inspect the crane
OSHA regulations only require that such equipment be inspected during initial use and annually thereafter by a "competent person"
What is the total resistance of this circuit in ohms? 10k-ohms,5k-ohms,3k-ohms,36v,
Answer:
If you know the total current and the voltage across the whole circuit, you can find the total resistance using Ohm's Law: R = V / I. For example, a parallel circuit has a voltage of 9 volts and total current of 3 amps. The total resistance RT = 9 volts / 3 amps = 3 Ω.
Explanation:
4. Find the future worth in year 10 of an investment that starts at $8000 in year 1 and
increases by 10% each year. The interest rate is 10% per year.
Explanation:
I have asked question in my profile please tell me the answer
1. In a safe approach to electrical work,
what should you always do immediately
before touching any electrical conductor?
A. Remove all electrical loads from the
circuit.
B. Check the condition of all circuit
breakers in the load center.
O C. Measure the voltage on the conductor
with a known good meter.
O D. Consult the NEC.
Answer:
D. Measure the voltage on the conductor with a known good meter
Explanation:
In a safe approach to electrical work,the thing that you should always do immediately before touching any electrical conductor is C. Measure the voltage on the conductor with a known good meter.
What should be done immediately before touching any electrical conductor?One should never touch any wires or conductors until you are certain that their electrical supply has been turned off. Circuits must be locked out and marked with a tag to prevent re-energizing them. A conductor is always risky. Before working on a circuit, always test to make sure it is deenergized.
The action you should always do right away before touching any electrical conductor is the safest approach to electrical work. Use a reputable meter to measure the voltage across the conductor.
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computer system analyst advantage
Answer:
They help an organization realize the maximum benefit from its investment in equipment, personnel, and business processes. They use and analyze systems, interpret data, and customize systems to better meet the organization's needs.
Explanation:
brainliest plz
Answer:
ục tiêu của pháp y máy tính là kiểm tra phương tiện kỹ thuật số theo cách thức pháp y với mục đích xác định, bảo tồn, phục hồi, phân tích và trình bày các sự kiện và ý kiến về thông tin kỹ thuật số
Explanation:
Which of the following occupations is the most physically dangerous?
O electrician
O Ironworker
O boilermaker
O cement mason
Answer:Ironworker
Explanation:
Their work is totally physical and lead they get hampered by lead most
Answer:
answer:ironworker
Explanation:
they can be hampered and can also get severely injured.
2. What of the following demonstrates a
correct principle of safe knife use?
A. Always use a sawing motion to safely
cut gradually
B. Always cut away from the body.
C. Always cut with the nearest person
directly in front of you. .
O D. Always cut directly across the wire.
The Role of Fuel Cells in Renewable Energy Solutions
Answer:
chemical energy directly
What is the eye an example of?
sense organ
stimulus
a relay neuron
sens organ is the eye example
Analyze the scope of residential and commercial construction (i.e. what is each comprised of) and provide an example of what the product development process would look like for either a residential or commercial construction project
Answer:
Analyzing building related carbon emissions remains as one of the most increasing interests in sustainability research. While majority of carbon footprint studies addressing buildings differ in system boundaries, scopes, GHGs and methodology selected, the increasing number of carbon footprint reporting in response to legal and business demand paved the way for worldwide acceptance and adoption of the Greenhouse Gas Protocol (GHG Protocol) set by the World Resources Institute (WRI) and World Business Council for Sustainable Development (WBCSD). Current research is an important attempt to quantify the carbon footprint of the U.S. residential and commercial buildings in accordance with carbon accounting standards and Scopes set by WRI, in which all possible indirect emissions are also considered. Emissions through the construction, use, and disposal phases were calculated for the benchmark year 2002 by using a comprehensive hybrid economic input–output life cycle analysis. The results indicate that emissions from direct purchases of electricity (Scope 2) with 48% have the highest carbon footprint in the U.S. buildings. Indirect emissions (Scope 3) with 32% are greater than direct emissions (Scope 1) with 20.4%. Commuting is the most influential activity among the Scope 3 emissions with more than 10% of the carbon footprint of the U.S. buildings overall. Construction supply chain is another important contributor to the U.S. building's carbon footprint with 6% share. Use phase emissions are found to be the highest with 91% of the total emissions through all of the life cycle phases of the U.S. buildings.
Explanation:
One of the areas of sustainability research that is receiving the greatest attention right now is the analysis of building-related carbon emissions. Although the bulk of studies on carbon footprints of buildings have different system limits, scopes, GHGs, and methodology choices.
What is construction?Building, road, bridge, or other structure construction, as well as steel structure manufacturing, are all considered to be part of the category of "construction works."
Building for commercial use is referred to as commercial construction. Commercial construction includes building for shops, offices, and educational institutions.
Residential development is concentrated on creating homes. Residential construction includes buildings like houses, apartments, and housing complexes.
With a 6% share, the construction supply chain is a significant contributor to the carbon footprint of American buildings.
With 91% of all emissions from all phases of the life cycle of American structures, use phase emissions are determined to be the greatest.
Thus, this is the scope of residential and commercial construction.
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After spotting a vehicle on a lift, what should you do next?
The vehicle should be raised slightly and checked for stability. :D
After spotting a vehicle on a lift, the next thing to do is:
B) Raise the vehicle slightly and check it for stability. Hence option B is true.
Given that;
Here spotting a vehicle on a lift.
Now, When spotting a vehicle on a lift, the next step would be to ensure safety and proper procedures.
Before raising the vehicle fully, it's important to raise it slightly to check if it is stable and secure on the lift.
This step helps prevent any accidents or damage that could occur if the vehicle is not properly positioned or supported.
Once you have confirmed the stability, you can proceed with raising the vehicle further and begin your work.
Hence option B is true.
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The complete question is,
After spotting a vehicle on a lift, what should you do next?
A) Raise the vehicle and get to work
B) Raise the vehicle slightly and check it for stability.
C) Make sure your service bay is free of tools and equipment
D) Make sure you haven't exceeded the lift capacity
Using an engineer’s (blank) helps create efficient drawings by providing the engineer with a model of common ratios in design.
What is used by engineers to create efficient drawings by providing the engineer with a model of common ratios in design is;
Computer Aided Design(CAD) Software
In the built environment, there is what we call 2D and 3D modelling.
Now, 3D modeling is the one that shows the length, width and height of an object and therefore this helps an engineer provide an accurate depiction of a project which helps clients with a view of the built-to-scale representation of their designs.
Whereas, 2D modelling just shows two sides of the design being worked upon. Now, these 2D and 3D drawing can be generated with the aid of Computer Aided Design Software which is also called CAD Software.Read more at; https://brainly.com/question/25152348
Answer:
Scale
Explanation:
This is 100% correct
Responding to the campaign of 4 classes, 7A, 7B, 7C, 7D contributed the amount of support proportional to the numbers 8,6;7;5 knowing the total amount of the two classes 7A, 7B is more than 7D 810 thousand VND sso the money each class has contributed
Writing life on my fantasy planet
In the base of mechanical science knowledge, define work, energy and power
Answer:
Work is the amount of energy transfered by a force.
Energy is the amount of power an object gets from its position or motion.
Power is the combination of all forces and movements of a system that is the rate at which work can be done by a system.