Answer:
the class is different and the topic treated in class 1 is different from class 3
three condition necessary for the formation of stationary
wave
Answer:
Two waves must be having same wavelength, frequency, amplitude and travelling in the opposite direction.
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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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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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.
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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
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"
1- The preexponential and activation energy for the diffusion of iron in cobalt are 1.1×10-5 m 2 /s and 253,300 J/mol, respectively. At what temperature will the diffusion coefficient have a value of 2.1×10-5 m 2 /s ?
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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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.
cat is stuck in 10 foot hole how do i get it unstuck
Answer:
I don't even know if you're serious but... you call the fire department and tell them about the issue and they get it unstuck
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.
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
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
The Role of Fuel Cells in Renewable Energy Solutions
Answer:
chemical energy directly
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
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
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Quản lí công trình và an toàn lao động
Answer:
I cant read this?
Explanation:
Engineered lumber should not be used for
A. finger-jointed studs.
B. plywood roof sheathing.
C. composite panel garage doors.
D. items that are in contact with concrete.
Answer:
Composite panel garage doors
Explanation:
Engineered lumber should not be used for composite panel garage doors. Hence, option C is correct.
What is a Pane lift garage door?Horizontal panels are connected to form a single garage door in panel lift doors, sometimes referred to as sectional doors. These panels have wheels attached to them that are positioned in tracks on either side and guide the door through a reasonably sharp turn to reposition it horizontally above the garage door opening.
Yes, however it's crucial to have a pro take their place for the finest outcomes. It can be unsafe for anybody other than a professional to install garage doors due to their complexity and difficulty.
One of the most affordable solutions on the market is an aluminum garage door. They are available in a variety of design options that can complement the exterior style of your home. Low-cost aluminum garage doors.
Thus, option C is correct.
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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:
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.
What is the eye an example of?
sense organ
stimulus
a relay neuron
sens organ is the eye example
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
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:
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.
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:
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.
What output will come for the expression (4.00/(2.0+2.0)) answer
7. 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
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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
Explain how feedback control is used to
adjust robotic movements.
Answer:
Feedback control of arm movements using Neuro-Muscular Electrical Stimulation (NMES) combined with a lockable, passive exoskeleton for gravity compensation
people working in the maintenance, installation and repair pathway work from home.
a) true
b) false