the following data are obtained when open-circuit and short-circuit tests are performed on a single-phase, 50-kva, 2400/240-volt, 60-hz distribution transformer.
Answers
With relatively little power given to the transformer and winding currents of the same size as during operation, a short-circuit test is performed to determine the transformer impedance and losses.
What is open-circuit test on a single phase transformer?One approach used in electrical engineering to ascertain the no-load impedance of a transformer's excitation branch is the open-circuit test, also known as the no-load test. The open circuit, which is shown on the right side of the picture as the "hole" or incomplete component of the circuit, is a representation of the no load.Impedance series is neglected:E1 = N1/N2 = E2=N1/N2 V2 = (2400/240) 240<° = 2400<0°V
N2 / N1 I 2 = 240 / 2400(4.85) = 0.485A
GC = P2 / E1 ² = 173 / (2400)² = 3.003 × (10 )-5 S.
YC = (N2 / N1 I2)/E1 = 0.485 /2400 = 2.021 × (10-)4S
BM = √Y²C - G²C = √(2.021 ×( 10)-4)² - (3.003 × (10)-5 )² = 1.998 × (10 )-4 S
YC = GC - JBM = 3.003 × (10) -5 - j1.998 × (10)-4 S
= 2.021 × (10) -4 < -81.45°S.
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Related Questions
Which mode specifier will open a file but not let you change the file or write to it?
A. 'e
B.'a'
C. 'r'
D. 'w'
Answers
The mode specifier that will open a file but not let you change the file or write to it is: "r" (Option C)
What is a mode specifier?A mode specifier is a one-word value that specifies the screen mode. It is dealt with as follows: It is presumed to be a mode number if it is a value between 0 and 255.
A mode specifier is a one-word value that specifies the screen mode. It is dealt with as follows: It is presumed to be a mode number if it is a value between 0 and 255. Otherwise, it is presumed to be a Sprite Mode Word if the bottom bit is set (describing a RISC OS 3.5 or RISC OS 5 format sprite).
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a run chart is a bar graph that depicts data points and their order of occurrence.
a. true
b. false
Answers
Answer:
False
Explanation:
A run chart displays the history and pattern of variation of a process over time. It is a line chart that shows data points plotted in the order of occurrence.
Hope this helps!!! :)
to prevent cables from being damaged by drywall screws or nails, a _____ is installed. select one: a. wire tie b. steel plate c. mud ring d. sleeve
Answers
It is to be noted that to prevent cables from being damaged by drywall screws or nails, a sleeve is installed. (Option D)
What is a sleeve in wiring?An electrical sleeve is defined as "a braided, knitted, woven, or extruded tube used to slide over poorly insulated wires in an electric assembly."
Cable sleeving, like heat shrink tubing, is used to preserve wires and is seen in cable management systems. It protects wires against damage caused by temperature extremes and abrasion, yet it does not require the use of heat to be placed.
When a cable is torn or worn away, the wires within become exposed. This increases your chances of coming into touch with the wires, which might result in an electric shock.
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What part moves in the brake caliper to push the brake pads against the brake rotor?
Answers
The component that moves in the brake caliper to push the brake pads up against the brake rotor is called the brake piston.
What is Brake Pistons?The ability of the brake pads to make contact with the braking rotor and stop a vehicle is provided by the pistons. The master cylinder releases braking fluid into the brake caliper when the brake pedal is depressed, and the pistons can be found in both floating and fixed brake calipers.
On the inboard side of the braking rotor, a floating caliper typically has one or two large diameter pistons. The piston(s) pull both pads toward the brake disc when they are engaged. Behind the brake pads, pistons are forced outward.
The brake pedal and master cylinder of the car generate hydraulic pressure in the braking fluid that engages the caliper. In this assembly, friction is produced by pressing the brake pads up against the disc rotor surface.
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Construct a regular expression corresponding to the following set: {binary strings such that every odd position is a 1}. You may assume that the even positions can be a 0 or 1.
Answers
Regex for every odd position is 1 and even position has 0 or 1 is (1(0+1))*(ϵ+1).
What is odd and even?
Whole numbers in mathematics can also be divided into even odd numbers. There isn't a single number that is both even odd, making odd and even numbers distinct sets of numbers. A number can be either even or odd. Odd numbers are ones that are not entirely divisible by two, whereas even numbers are entirely divisible by two. A number that can be split into 2 equal groups is referred to as an even number. An odd number, on the other hand, is one that cannot be split into two equal groups.
Additionally, even and odd numbers can be described as:
Even Number: A number is considered even if it can be divided by 2 with 0 remaining as the residual.
Odd Number: A number is considered odd if it cannot be divided by 2, leaving one as the remainder.
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wo technicians are discussing tire puncture repair using a tire patch. technician a says that you should use a tire buffer to smooth the area around the hole. technician b says that a liquid buffing solution should be used to scrub the area just buffed. who is correct? group of answer choices technician a only
Answers
Both technicians a and b are correct because it is correct to use a liquid buffing solution to scrub the area that has just been buffed, but it is also correct to use a tire buffer to smooth the area around the hole when doing tire puncture repair using a tire patch.
How Should You Deal With A Puncture?
The best solution is to take your vehicle to a professional for patching. A professional can quickly locate the puncture, remove the nail/screw, patch the tire, and re-inflate it. This service provides a dependable repair without the hassles or risks associated with other options.
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What is Otto cycle explain?
Answers
Answer:
Explanation:
The first successful engine working on this cycle was built by
A. Otto.
These days, many gas, petroland many of the oil engines run on this cycle. It is also known as constant volume cycle, as the heatis received and rejected at a constant volume
This cycle is taken as a standard of comparisonfor internal combustion engines. For the purposeof comparison with other cycles, the air isassumed to be the working substance.•
The ideal Otto cycle consists of two constantvolume and two reversible adiabatic orisentropic processes as shown fig:Otto Cycle•
Processes of Otto Cycle:•
Process 1-2: Isentropic compression•
Process 2-3: Constant-volume heat additiont
Process 3-4: Isentropic expansion• Process 4-1: Constant-volume heat rejection
According to the Otto Cycle, heat engines use gasoline to propel themselves. This cycle also converts chemical energy into thermal energy, which is ultimately converted into motion. The Otto cycle explains the operation of internal combustion engines (which use gasoline), such as those found in cars and lawnmowers.
The Otto Cycle was crucial to the development of the modern world and supplies the energy for the majority of transportation. Specifically, the Otto Cycle is used by the great majority of vehicles on the road today to turn gasoline into motion.
Explain the Internal Combustion Engine.
An internal combustion engine is a type of heat engine in which fuel and an oxidizer burn together in a combustion chamber which is a crucial component of the working fluid flow circuit. The power-generating technologies that are currently most commonly utilized and used are internal combustion engines. An example is diesel and gasoline engine.
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A sculptor uses a constant volume of modeling clay to form a cylinder with a large height and a relatively small radius. The clay is molded in such a way that the height of the clay increases as the radius decreases, but it retains its cylindrical shape. At time t=c, the height of the clay is 8 inches, the radius of the clay is 3 inches, and the radius of the clay is decreasing at a rate of 12 inch per minute. (a) at time t=c, at what rate is the area of the circular cross section of the clay decreasing with respect to time? show the computations that lead to your answer. Indicate units of measure.
Answers
The rate [tex]\frac{dr}{dh} = - \frac{r}{2h}[/tex] iat which the area of the circular cross section of the clay decreasing with respect to time.
Step-by-step explanation of the given problem:
The formula for calculating a cylinder's volume is: V = πr²h,
Where V is the volume, r is the cylinder's radius, and h is the cylinder's height.
The rate of change of the radius of the clay with respect to the height of the clay is to be expressed in terms of height h and radius r.
That is, dr / dh is expressed in terms of height h and radius r. To do so, we must first differentiate the volume from the height, i.e. find dV / dh:
V = πr²h
dV/dh = d/dh(π[tex]r^{2}[/tex]h)
dV/dh = π[tex]r^{2}[/tex] + 2πrh (dr/dh)
The volume is constant, hence dV/dh = 0.
We get,
0 = π[tex]r^{2}[/tex]h
dV/dh = π[tex]r^{2}[/tex] + 2πrh (dr/dh)
-π[tex]r^{2}[/tex] = 2πrh (dr/dh)
dr/dh = - π[tex]r^{2}[/tex]/2πrh
dr/dh = - r/2h
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EMISSIONS ASSESSMENT
What is the best recommendation you can make to your
customers to prevent emissions systems failure?
Running only ethanol-free gas in their vehicle
Wait until the gas light comes one before filling the car up
Regular maintenance of the fuel and emissions system
Regularly grease tie rod ends
Select Submit
Answers
Answer:
The best recommendation to prevent emissions systems failure is to regularly maintain the fuel and emissions system.
Explanation:
A 6. 00-m-long, 500 kg steel uniform beam extends horizontally from the point where it has been bolted to the framework of a new building under construction. A 70 kg construction worker stands at the far end of the beam.
Answers
18816 Nm is the amount of torque applied to the bolt by the worker and the weight of the beam.
The given parameters;
length of steel, L = 6.00 m
mass of steel, m = 500 kg
mass of work, m = 70 kg
The center of gravity of the beam Equals The torque caused by the worker and the weight of the beam is computed as follows:
= [tex]\frac{6.00}{2}[/tex]= 3 m
[tex]T_{t} = T_{1} + T_{2}\\T_{t} = F_{1} r_{1} + F_{2}r_{2}\\T_{t} = m_{1}gr_{!} + m_{2}gr_{2}\\[/tex]
[tex]T_{t} =[/tex](500 ×9.8×3) + (70×9.8×6.00)
[tex]T_{t} =[/tex]18816 Nm
This results in a torque of 18816 Nm being applied on the bolt by the worker and the weight of the beam.
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problem 7-9 the beam ab will fail if the maximum internal moment at d reaches 800 n.m or the normal force in member bc becomes 1500 n. determine the largest load w it can support. given:
Answers
The largest load w it can support w Is 100 N/m
What is the w?Where the shear force is zero, the bending moment reaches its maximum or minimum iii. Where the radius of curvature is zero iv, the bending moment reaches its maximum or least value. The section where the maximum bending moment and shear force occur.
Assume maximum moment occurs at D;;
↺+∑M D =0;M D − 8w /2(4)+ 4w (2) = 0
800=8 w
w=100 N/m
↺+∑M A =0;−800(4)+T BC (0.6)(8)=0
T BC =666.7 N < 1500 N
T BC =666.7 N<1 500 N
w =100 N/m
The largest load w it can support w Is 100 N/m.
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your enterprise recently approved using fingerprint scanners to authenticate employees who access restricted areas. you are assigned to conduct a study on how secure fingerprint authentication is. which of the following should you report?
Answers
You should report that in some rare instances, fingerprint scanners may be utilized in deception.
Biometric security systems include fingerprint scanners. They are utilized in security businesses, police stations, cellphones, and other mobile devices. Everybody's fingers have distinct patterns of friction ridges, and it is this pattern that is referred to as the fingerprint. Fingerprints are distinctively detailed, reliable across a person's lifetime, and challenging to change.
Fingerprints have developed into the best method of identification because there are so many possible combinations. Optical fingerprint scanners, capacitance scanners, ultrasonic scanners, and thermal scanners are the four different categories of fingerprint scanners. Every sort of scanner's fundamental job is to capture an image of a user's fingerprint and look up a match in its database. Dots per inch are used to gauge how well an image of a fingerprint is captured (DPI).
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You are given a string S containing lowercase English letters. Your task is to calculate the minimum number of letters that need to be removed in order to make it possible to build a palindrome from the remaining letters. When building the palindrome, you can rearrange the remaining letters in any way. A palindrome is a string that reads the same both forwards and backwards. Some examples of palindromes are: "kayak", "radar", "mom". Write a function: def solution(5) which, given a string of length
N
, returns the minimum number of letters that need to be removed. Examples: 1. Given
S
= "ervervige", your function should return 2. After removing the letter "
g
" and one "e", we may create a word "reviver", which is a palindrome. 2. Given
S
= "aaabab", your function should return 0 . We may create a word "aabbaa", which is a palindrome and uses all of the letters. delete any letter. Write an efficient algorithm for the following assumptions: -
N
is an integer within the range [1..200,000]: - S contains only lowercase English letters.
Answers
A straightforward fix is to eliminate each subsequence one at a time and determine whether the remaining string is a palindrome or not. This solution has exponential time complexity.
What is palindrome?A palindrome is a word, phrase, or sentence that reads the same both forward and backward. Palindrome is a combination of the Greek words for "again" (palin) and "to run" (drom).Finding the length of the longest palindromic subsequence of a given sequence is a useful strategy.Reverse a Word using Stack is the subject of this series of Data Structures & Algorithms Multiple Choice Questions & Answers (MCQs). 1. A word can be reversed using stack to determine whether or not it is a palindrome.having the function in / If a palindromic string of at least three characters can be made by eliminating one or two characters, it can be created using the PalindromeCreator(str) function.To learn more about palindrome refer to:
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the 0.55 in. -diameter shaft is subjected to the loading shown. the journal bearing at c can exert only force components cy and cz on the shaft, and the thrust bearing at d can exert force components dx, dy, and dz on the shaft.
Answers
The journal bearing at c can exert force components cy and cz on the shaft, and the thrust bearing at d can exert force components dx, dy, and dz on the shaft.
What is component?
A functionally independent component is a portion of any system. It performs a certain function and could call for input or give off output. Classes are frequently used in software to represent a component. A component is a logical task or set of logical duties. Take an automobile, for instance. Given that it enables individuals to sit, which is an input, it can be regarded as a component. Its purpose is to move a person from one location to another. Its qualities are shown by the amount of gasoline it needs to run and the top speed it can travel at. It is made up of an air conditioner, brake system, engine, and other small parts. Each of these supporting elements performs a unique purpose.
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when designing roads, buildings, and bridges in a floodplain, engineers consider the statistical probability of a flood of a given size happening in a given year. a 50-year flood has a blank probability of occurring in a given year. multiple choice question.
Answers
When designing roads, buildings, and bridges in a floodplain, engineers consider the statistical probability of a flood of a given size happening in a given year. A 50-year flood has a 2 percent probability (1/50) of occurring in a given year.
What is a floodplain?A floodplain, also known as a flood plain or bottomlands, is an area of land next to a river that extends from the banks of its course to the foot of the valley walls and suffers flooding during high discharge times.
Floodplains help wildlife by providing a range of habitats for fish and other creatures. Furthermore, floodplains are crucial for water storage and conveyance, water quality preservation, and groundwater recharge.
Note that the options the above question are not available hence the general answer.
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a service conductor without an overall jacket must have a clearance of not less than above a window that can be opened.
Answers
A service conductor without an overall jacket must have a clearance of not less than three feet above a window that can be opened.
The standards for the installation of service conductors, devices for controlling and safeguarding services, as well as related equipment are addressed in Article 230.
Service conductor installed as open conductors or multiconductor cables outside of an entire outer jacket should be at least three feet away from any windows that can be opened, doorways, terraces, balconies, ladders, steps, fire exits, and other similar areas.
Nevertheless, conductors that traverse over a window's top tier may also be closer to the window than 914 mm (3.0 ft).
Final spans must maintain a vertical clearance of 914 mm (3.0 ft) or so with respect to platforms, projecting, or elevations from which they'll be accessed.
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Saws with fine blades that are excellent for delicate and intricate cutting are called.
Answers
Saws with fine blades that are excellent for delicate and intricate cutting are called saber saws.
The sabre saw is a motorized reciprocating hand-held saw. It resembles a jigsaw but is bigger.
The toothed blade of the sabre saw is mostly used to cut through soft materials like wood. The sabre saw's controllability is drastically decreased because it lacks the big sole plate that a jigsaw has. commonly referred to as a reciprocating saw or sawzall.
Smooth contour cuts can be made with or against the grain with the saber saw. The saber saw is a versatile and practical tool for quickly cutting and shaping wood, plastic, and even metal.
In the marketplace, the terms "jigsaw" and "sabre saw" appear to be interchangeable.
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Using the following source code, answer the questions listed below. (a) Draw a control flow graph to represent the method Fun1, shown above. Label the nodes (starting with
A
) and the outgoing edges of the decision boxes appropriately. (b) Using the line labels in the code for method Fun1, identify all the def-use pairs for the variables
x
, k and
y
. (c) Identify a set of test cases that satisfies the all-defs criterion, for variables
x,k
and
y
in method Fun1. Use trace tables to show how the def-use pairs are covered. If you cannot achieve
100%
coverage for the all-defs criterion please explain why. (d) Identify a set of test cases that satisfies the all-uses criterion, for variables
x,k
and
y
in method Fun1. Use trace tables to show how the def-use pairs are covered. If you cannot achieve
100%
coverage for the all-uses criterion, please explain why.
Answers
A control flow graph to represent the method Fun1 using folloeing source code is here
if (number <0 || digit <0)
return -1
digitcount = 0
while (number >0)
if (number % 10)==digit)
digitcount++
number /=10
return digitcount
When a programmer creates programming statements using a text editor or a visual programming tool, they are typically saved in a file and are referred to as source code. When the source code is combined with a C compiler, an output file known as an object file is created.
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8. When the accessory service tool is used for system checkout, the service tool C and D
terminals are connected to:
it terminal board.
Answers
The service tool C and D terminals are connected to the IT terminal board.
What is terminal?
A terminal is the endpoint of a conductor from a component, device, or network. Terminal may also refer to an electrical connector at this endpoint that serves as a reusable interface to a conductor and provides a point for external circuits to be attached. A termination can be as simple as the end of a wire or as complex as a connection or fastener. In network analysis, a terminal is a theoretical location at which connections to a network can be created and does not necessarily refer to any real item. It is sometimes referred to as a pole in this context, particularly in older publications. Terminals for external connections are represented on circuit diagrams by empty circles.
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A-List the information contained in the SaleItem table plus the product name and category concerning the sales of sneakers and the sales of casual shoes (categories) whose sale price is equal to $100. (Categories are not capitalized in the database.) Note: Your answer should dynamically include all current columns in SaleItem and any future changes to columns, plus the product name and category.
B-List Salaried employees whos salary is greater than $40,000. Show Employee first name, last name, hiredate and salary. Sort the data by hire date.
Answers
The answer of the following program is given below:
<code>SELECT
si.id,
si.product_id,
si.price,
p.name,
c.category
FROM SaleItem si
JOIN Product p ON si.product_id = p.id
JOIN Category c ON p.category_id = c.id
WHERE
c.category IN ('sneakers', 'casual shoes') AND
si.price = 100
</code>
What is program?
A computer utilises a set of instructions called a program to carry out a particular task. A program is like the recipe for a computer, to use an analogy. It includes a list of components (called variables, which can stand for text, graphics, or numeric data) and a list of instructions (called statements), which instruct the computer on how to carry out a certain activity.
Specific programming languages, such C++, Python, and Ruby, are used to construct programmes. These are high level, writable, and readable programming languages. The computer system's compilers, interpreters, or assemblers subsequently convert these languages into low level machine languages.
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a 300 kw, 4.16 kv, 600 r/min, 60 hz, 3-f synchronous motor has a synchronous impedance of 1 1 j5 ohms/phase. the motor delivers rated power and draws nominal current at a power factor of 0.9 leading. its rotational losses are 12 kw. determine:
Answers
At a power factor of 0.9 leading, the motor draws nominal current and outputs rated power. Its average current is 46.26 Amp, and its rotational losses are 12 kw.
Given that the 300 KW , 4:16 KV , 600 r /min , 60HZ
30 , Synchronous motor
Z = i+j5 / phase
P. F = 0.9 leading
Rotational losses = 12 kW
( 1 )
Amature current
P=∛VLcos∅
L=p/∛Vcos∅
300*1000/∛*4.16*1000*0.9
L=46.26 Amp
The winding to which the load is attached is known as the armature. In small generators, the armature windings are frequently on the rotor and the field windings are frequently on the stator. But the majority of large machines have a rotating field and a stationary armature. A series machine's field winding has fewer turns than a separately excited machine's field winding because a machine's armature current is typically much higher than its field current.
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this program will input an undetermined number of student names // and a number of grades for each student. the number of grades is // given by the user. the grades are stored in an array. // two functions are called for each student. // one function will give the numerical average of their grade
Answers
This program will input an undetermined
#include <iostream>
#include <string>
#include <iomanip>
using namespace std;
// function prototypes
void getData(string [], int [][5], int);
void average(int [][5], int);
What is program?
A computer utilises a set of instructions called a program to carry out a particular task. A program is like the recipe for a computer, to use an analogy. It includes a list of components and a collection of instructions that explain to the computer how to carry out a certain task. Specific program languages, such C++, Python, and Ruby, are used to construct programmes. These are high level, writable, and readable programming languages. The computer system's compilers, interpreters, or assemblers subsequently convert these languages into low level machine languages. Although it is typically far more cryptic and challenging to grasp, assembly language is a form of low level language that really is one step beyond machine language. Technically, a human could write assembly language.
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Physical entry into the rotor hub is not typically permitted below -10°F (-23°C) for
any purpose.
Answers
Because a single movable pulley's effectiveness is not 100%, physical access to the rotor hub is normally prohibited below -10°F (-23°C).Typically, the rotor hub is the part that secures the blades and attaches them to the wind turbine's main shaft.
Describe the rotor hub.The part that typically supports the blades and links them to the main shaft of the wind turbine is called the rotor hub. It is an essential part not only because it rotates to power the generator but also because it keeps the blades in the ideal position for optimal aerodynamic efficiency.The rotor is squeezed by the pads as they are pressed against it by powerful hydraulic pressure. We can stop the car by applying pressure to the brake pads against this surface. The component known as the hub contains the wheel bearing that the axle will rest on.The main rotor blades of a helicopter are moved by means of a mechanical device called a swashplate.The rotor hub is the part that secures the blades and attaches them to the wind turbine's main shaft.To learn more about Rotor hub refer to:
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which of the following questions do data analysts ask to make sure they will engage their audience? select all that apply.
Answers
The questions which data analysts ask to make sure they will engage their audience include the following:
A. What roles do the people in this audience play?
B. What does the audience hope to do with the data insights?
C. What is the audience’s stake in the project?
What is data?In Computer technology, data simply refers to any representation of factual instructions or information in a formalized and structured manner, especially as a series of binary digits (bits), symbols, characters, quantities, or strings that are used on computer systems in a company.
Who is a data analyst?A data analyst can be defined as an expert or professional who is saddled with the responsibility of inspecting, transforming, analyzing, and modelling data with the sole aim of discovering useful information, providing insights, and creating informed conclusions, in order to support decision-making and create a completed report.
In conclusion, all of the aforementioned questions must be answered by a data analyst in order to ensure that he or she gets quality engagement with the audience.
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Complete Question:
Which of the following questions do data analysts ask to make sure they will engage their audience? select all that apply.
A. What roles do the people in this audience play?
B. What does the audience hope to do with the data insights?
C. What is the audience’s stake in the project?
D. What information will convince the audience that my opinion is correct?
create a style rule for the fieldset and input elements that sets the bottom margin to 2%. create a style rule for the fieldset legend that sets the font-size to 1.25em and makes the font bold. create a style rule for the label that sets the display to block and sets padding-top to 3%. create a style rule for the btn class selector that removes the border, sets the top and bottom margin to zero and the left and right margin to auto, sets the display to a block, sets the padding to 5%, sets the background-color to 003399, sets the font-size to 1.25em, sets the border-radius to 10px, and sets the color to white (fff).
Answers
Body's background color is specified by the following style: linear-gradient(to top right, 0%, 100%) body font family: Geneva, Arial, sans-serif; no-repeat fixed center;.
/* Style for body specifies background color */ body background: linear-gradient (to top right, 0%, 100%); no-repeat fixed center; font-family: Geneva, Arial, sans-serif;
/* The container element's style/
width of #container is 90%.
margin: 0 auto; fieldset legend's font-size and weight are bold; label's display is block; padding-top is 3%; input's margin-bottom is 2%; and fieldset legend's margin-bottom is 2%.
.btn displays as a block with the following properties: background color of #003399, foreground color of #fff, font size of 1.25em, margin of 0 auto, padding of 5%, border of none, and border-radius of 10px.
/* The footer element's style /*
footer.9em font size, middle text alignment.
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stimate the theoretical fracture strength (in mpa) of a brittle material if it is known that fracture occurs by the propagation of an elliptically shaped surface crack of length 0.25 mm that has a tip radius of curvature of
Answers
Theoretical fracture strength of a brittle material if it is known that fracture occurs by the propagation is 16760 Mpa
б₀(stress)=1060Mpa
radius of the curvature =0.004 mm
surface of crack =0..25 mm
бmax=2б₀√a/s
=2*1060*√0.25/0.004
бT.F.S =16760 Mpa
According to the type of applied loading, such as tensile, compressive, or bending, a material's fracture strength—or ability to withstand failure—is explicitly determined. According to the Griffith equation, beta alumina's fracture strength F is correlated with the stress required to propagate a microstructural fault. σF=(2EγiπC)1/2 where C is the half-length (radius) of the strength-controlling fault and E stands for Young's modulus, I for fracture surface energy, and I for the fracture energy. The stress at the site of rupture is expressed as the fracture strength, also known as the breaking strength. The stress value at which the test specimen splits into two different pieces is known as the tensile strength test stress value. The cross-sectional area at the fracture divided by the load at the fracture represents the genuine fracture stress.
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Q15
List any four (4) new technologies applicable to the material engineering and
application of induction motors.
a) List two under material engineering.
b) List two under applications.
Answers
(a) Two new technologies applicable to material engineerings are Nanotechnology, Additive Manufacturing.
(b)Two new technologies application of induction motor are Pumps,
Compressors.
What do you understand by material engineering?
Math, physics, and chemistry are the instruments that materials engineers employ to investigate, comprehend, and regulate the behavior of materials. We use that information to create new materials, determine the best ways to use already-existing materials and processing methods, and provide reasons why some materials failed.
What do you understand by Induction motor?
An induction motor, also known as an asynchronous motor, is an AC electric motor in which the magnetic field of the stator winding is used to electromagnetically induct the electric current into the rotor necessary to produce torque. Therefore, it is possible to construct an induction motor without electrical connections to the rotor.
A structure, device, or system that is created, produced, or used by manipulating atoms and molecules at the nanoscale, or having one or more dimensions of the order of 100 nanometers (100 millionth of a millimeter) or less, is referred to as nanotechnology.
The method of producing an object layer by layer is known as additive manufacturing. It is the reverse of subtractive manufacturing, which involves removing small amounts of a solid block of material at a time until the finished item is produced.
For commercial and industrial pumping applications, three-phase alternating current (AC) induction motors are more typical than single-phase motors. Among the causes are: A three-phase motor's individual phase current is less than 60% of that of a comparable single-phase motor.
A pneumatic device known as an air compressor transforms power (from an electric motor, diesel or gasoline engine, etc.) into potential energy stored in pressurized air. An air compressor raises the pressure in a storage tank by using one of several techniques to push more and more air into the container.
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when a consequence is provided contingent upon a learner engaging in appropriate behavior and that appropriate behavior is more likely to occur in the future is best described by which of the following?
Answers
When a consequence is provided contingent upon a learner engaging in appropriate behavior and that appropriate behavior is more likely to occur in the future is best described by reinforcement.
When a certain antecedent stimulus precedes a behavior, an organism's future behavior will be strengthened through the application of reinforcement. This strengthening effect may be quantified as increased behavior (e.g., drawing a lever more frequently), increased duration (e.g., pushing a lever for an extended period of time), increased magnitude (e.g., pulling a lever more firmly), or decreased latency (e.g., pulling a lever more quickly following the antecedent stimulus).
Self-awareness, self-reflection, and self-regulation are the three key tenets of the self-regulation paradigm of human behavior. Historically, rewards have correlated with self-regulation. Although the result may have an impact on the behavior, behavior also requires antecedents. Positive reinforcement, negative reinforcement, extinction, and punishment are the four different types of reinforcement.
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How does the Center of Gravity of a Robot Relate to the Translational, Rotational, or Oscillatory Motion Associated with it?
Answers
The center of gravity, also known as the balance point or point of rotation when an object is permitted to freely rotate, is the average location of an object's weight.
Explain about the Gravity?All objects with mass are attracted to one another by the gravitational attraction, which has a magnitude that is directly proportional to the masses of the two objects and inversely proportional to the square of their distance from one another.
By means of gravity, a planet or other body pulls items toward its core. All the planets are maintained in their orbits around the sun by the force of gravity.
Any particle of matter in the universe will gravitate toward any other with a force that varies directly as the product of the masses and inversely as the square of the distance between them, according to Newton's law of gravity.
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there is a course with a certain number of students. in this course the only evaluation are certain number of quizzes, graded from 1 to 100. make a program that: 1) ask user for the number of students and the number of quizzes in the course 2) use nested loops to ask for each student quizzes' grades, 3) calculates the quiz average numerical grade of the course. 4) print the result on the screen.
Answers
There is a course with a certain number of students, make a program that
#include <iostream>
using namespace std;
int main()
{
int num_students; //Number of students in the class
int num_quizzes; //Number of quizzes for each student
int quiz_grade; //Quiz grade
int quiz_sum = 0; //Sum of quiz grades
float quiz_avg; //Average of quiz grades
//Get number of students and number of quizzes
cout << "Enter the number of students in your class: ";
cin >> num_students;
cout << "Enter the number of quizzes for each student: ";
cin >> num_quizzes;
//Get quiz grades for each student
for(int i = 0; i < num_students; i++)
{
for(int j = 0; j < num_quizzes; j++)
{
cout << "Enter grade for quiz " << j << " for student " << i <<": ";
cin >> quiz_grade;
//
What is program?
A computer program is a collection of instructions, and the term "computer program" can be used both as a verb and a noun. It is used as a verb to describe the act of writing software using a programming language. To accomplish a certain operation on the computer, an application, program, and application software is used as a noun. For instance, Microsoft PowerPoint is indeed an application that offers a way to produce presentation-related documents. In addition, a browser is a software program that enables us to view any website.
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