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
Learn more: https://brainly.com/question/14283892
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.
Learn more aboutconductor at;
https://brainly.com/question/30759857
#SPJ3
Find the error in the following pseudo code
Declare Boolean finished = false
Declare Integer value, cube
While not finished
Display “enter a value”
Input value
Set cube = value ^3
Display cube
End while
Pseudocodes are used as a prototype of an actual program.
The error in the pseudocode is that, the while loop in the pseudocode will run endlessly.
From the pseudocode, the first line is:
Declare Boolean finished = false
The while loop is created to keep running as long as finished = false.
So, for the while loop to end, the finished variable must be updated to true.
This action is not implemented in the pseudocode.
Hence, the error in the pseudocode is that, the while loop is an endless loop
Read more about pseudocodes at:
https://brainly.com/question/17442954
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:
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.
Read more on automotive engineering here:
brainly.com/question/10825849
#SPJ3
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
A thermocouple gives an output of 0.2 mV for each degree change in temperature. What will be the word length required when its output passes through an analogue-to-digital converter if temperatures from 0 to 1000 oC are to be measured with a resolution of 0.5 oC?
9514 1404 393
Answer:
11 bit
Explanation:
The number of resolution units required is ...
(1000 °C -0 °C)/(0.5 °C) = 2000
log2(2000) = 10.97, so an unsigned word length of 11 bits is the minimum required.
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.
To know more about technical certification courses follow
https://brainly.com/question/26004231
#SPJ2
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:
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.
Which of the following lists the steps of a process in the correct order?
Input, Process, Output, Feedback
Feedback, Process, Output, Input
Input, Output, Feedback, Process
Process, Feedback, Input, Output
The list which gives the steps of a process in the correct order is: A. Input, Process, Output, Feedback.
A process refers to a set of finite steps that must be followed in order to achieve an expected outcome or result in a system.
Generally, there are four (4) main steps in a process and these include the following in a correct order (chronology):
Input: this is the data that is entered into a system.
Process: this is the conversion of a data into useful information.
Output: this is the useful information that are presented to an end user.
Feedback: this is the response that is received from the end users.
Read more on a process here: https://brainly.com/question/25614614
Answer:
A
Explanation:
First you must input your data than you get the process of what that information is. Next is the output when you get the results then you get feedback.
Think of it like making a pizza. you must INPUT the ingredients... Then Cook the pizza (PROCESS) Finally you get the pizza cooked and it's called the output!! Finally, when you sell the pizza, and the customer eats it. Feedback
pls discuss the concepts in which architectural forms/visuals correlate in the design process
Answer:
Visual connectivity refers to the tangible aspects of a space; extent to which a place can be viewed from other places. It is believed that the design properties of a spatial layout of an atrium leaves unobstructed views horizontally and vertically.
Explanation:
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
people working in the maintenance, installation and repair pathway work from home.
a) true
b) false
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 :
https://brainly.com/question/25215474
#SPJ2
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 gramos7. The ____ is a device that connects a stationary object to a fall restraint vest.
A. restraint
B. tie-off
C. lanyard
D. sling
The lanyard is a device that connects a stationary object to a fall restraint vest. The correct option is C. lanyard
How to explain the informationThe answer is C. lanyard. A lanyard is a short length of rope or chain with a snap hook on one end that is used to connect a fall restraint vest to a stationary object. The other end of the lanyard is attached to the vest.
The other options are incorrect. A restraint is a device that prevents someone from moving freely. A tie-off is a secure attachment point for a lanyard. A sling is a piece of fabric that is used to support a load.
The correct option is C
Learn more about device
https://brainly.com/question/28498043
#SPJ2
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:
noooo plssschvwekjshdjkshdjkshdjksahdk
Answer:
chehdhfhfhd
Explanation:
fjrjshrhdhr
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
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.
vết nứt tế vi là gì?
What is the difference between class 1 and class 3 lever?
Answer:
the class is different and the topic treated in class 1 is different from class 3
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.
To learn more about forklift operators, refer to the link:
https://brainly.com/question/3077792
#SPJ2
Quản lí công trình và an toàn lao động
Answer:
I cant read this?
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
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.
1. A flywheel is suspended by resting the inside of the rim on a horizontal knife edge so that the wheel can swing in a vertical plane. The flywheel has a mass of 350Kg. The knife edge is parallel to and making 350mm from the axis of the wheel. The time for making one small oscillation is 1.77 seconds. Assuming that the centre of mass is in the axis of the wheel, determine:
(I).The radius of gyration of the wheel about the axis.
(II). The torque to increase the speed of the flywheel at uniform rate from 240 rev/min to 250 rev/min in 0.75seconds when the flywheel is revolving about its axis.
2. A solid metal cylinder 450mm diameter is suspended with its axis vertical by means of a wire coaxial with the cylinder and rigidly attached to it. The stiffness of the wire is 22Nm per radian of twist. Find the necessary mass of the cylinder so that when it is given a small angular displacement about its axis, it will make 40 vibrations per minute.
Answer: A fly wheel having a mass of 30kg was allowed to swing as pendulum about a knife edge at inner side of the rim as shown in figure.
Explanation:
QUESTION 7
Technician A says both OEM and TCMC brake pad kits come with new shims.
Technician B says TCMC products have a 12-digit part number instead of the traditional 10 digits.
Who is right?
Select the correct option and click NEXT
A only
B only
A
Both A and B
Neither A nor B
Answer:
Explanation:
Both a and B
In these two statements by Technician A and Technician B, C. Both A and B are correct.
OEM means Original Equipment Manufacturer, while TCMC means Toyota Complete Maintenance Care. OEM brake pad kits come with new shims as TCMC brake pad kits.
Traditional part numbers bear 10-digits, but TCMC products bear 12-digit part numbers.
Thus, we can conclude from the statements by Technician A and Technician B that C. Both Technician A and Technician B are correct.
Learn more about maintenance processes with the original equipment manufacturer and TCMC parts here: https://brainly.com/question/4789600
Draw a conceptual sketch of your laptop. Identify the keyboard, screen, power source, and storage device and etc. using arrows and labels.
Answer:
draw a picture of your computer and label it
Answer: You need to make a drawing for this problem
Explanation:
Make a simple sketch of a laptop, then draw an arrow and label the screen, keyboard, mouse pad, charging port, charging cord, and any extra parts you would like to label.
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.
The Role of Fuel Cells in Renewable Energy Solutions
Answer:
chemical energy directly