Solution :
Given :
cross sectional area = 5.6 cm square
The corresponding stress
[tex]$\sigma = \frac{F}{A}$[/tex]
[tex]$=\frac{2.5 \times 175 \ lb\times (1 \ N/ 0.2248 \ lb)}{5.6 \ cm^2 (1 \ N/100 \ cm)^2}$[/tex]
[tex]$=\frac{1946.17}{0.056 \times 10^{-2}}$[/tex]
[tex]$= 3.475 \times 10^6 \ N/m^2$[/tex]
∴ [tex]$\sigma = 3.475 \ MPa$[/tex]
And the strain is
[tex]$\epsilon = \frac{\sigma}{E}$[/tex]
[tex]$=\frac{3.475}{124 \times 10^3}$[/tex]
[tex]$= 2.80 \times 10^{-5}$[/tex]
In the United States, a bicyclist is killed:
A. (Every 12 hours
B. Every week
c. Every day
D. Every 6 hours
In the United States, it should be noted that a bicyclist is killed every six hours.
The cause of the accidents has been attributed to the rough driving of vehicle drivers and some faults are on the part of the cyclist as well.
Rapidly overtaking a bicycle is dangerous. Also, there are some vehicle drivers who drive into the lanes that are meant for cyclists. This isn't appropriate.
Drivers should ensure that they are not close to the cyclists when driving as there should be a space of at least 3 feet between the bicycle and the vehicle.
Furthermore, when there is a narrow traffic lane, the vehicle drivers should ensure that there's a clear traffic in the opposite lane before they change their lanes.
Lastly, both the cyclists and the vehicle drivers should not overspeed and drive safely.
Based in the information given above, the correct option is D.
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Joe, a technician, is attempting to connect two hubs to add a new segment to his local network. He uses one of his CAT5 patch cables to connect them; however, he is unable to reach the new network segment from his workstation. He can only connect to it from a workstation within that segment. Which of the following is MOST likely the problem?
A. One of the hubs is defective.
B. The new hub is powered down.
C. The patch cable needs to be a CAT6 patch cable.
D. The technician used a straight-through cable.
Answer:
Option D. is correct
Explanation:
Joe uses one of his CAT5 patch cables to connect two hubs to add a new segment to his local network. As he can only connect to it from a workstation within that segment, he is not able to reach the new network segment from his workstation.
The most problem is that the technician used a straight-through cable.
Option D. is correct.
At a specified point on a highway, vehicles are known to arrive according to a Poisson process. Vehicles are counted in 20-second intervals, and vehicle counts are taken in 120 of these time intervals. It is noted that no cars arrive in 18 of these 120 intervals. Approximate the number of these 120 intervals in which exactly three cars arrive. Estimate the percentage of time headways that will be 10 seconds or greater and those that will be less than 6 seconds.
Consider a second cosine waveform y(t) with the peak value of 10A and frequency of 60Hz. Calculate the power throughtput wherein x(t) and y(t) can be assumed to be the voltage waveform and the current waveform respectively across the two terminals.
Answer:
power = 0
Explanation:
Given data:
cosine waveform; y(t) = 10cos(120πt)
peak value = 10A
frequency = 60 Hz
Calculate power throughout given x(t) and y(t) are assumed to be voltage waveform and current waveform
y(t) = 10cos(120πt)
frequency of x(t) = 100 Hz
frequency of y(t) = 60 Hz
power = IV where frequency is constant/similar
from the above it can be seen that frequency differs for x and y components hence power = 0
Examine the pressure-measuring device shown in the figure below. (a) What is the gauge pressure reading in psi at point A? (b) What is the pressure difference between point A and B? (c) Which is higher, pressure at point A or at point B? (d) What is the absolute pressure in psi at point D? State any assumptions you made
Answer: 45
Explanation:just cuase I need to
World Without Engines: Explain what todays world without engines would be like? How would it change your life? The world? The way we do things? Please write in paragraph format and include introduction, body, and conclusion. DON'T ANSWER UNLESS YOU HAVE THE ANSWER!!!!!!!!! I WILL MARK BRAINLYEST
Answer:
the world will not be the same it will change dramticily and
things will not be the same
Explanation:
Which option identifies the type of engineer described in the following scenario?
Sean is an engineer whose current project is a skyscraper in Richmond, VA. He relies heavily on geometry in his research of building design.
Material
Civil
Mechanical
Chemical
Answer:
civil
Explanation:
mark be branilist
Answer:
Civil
Explanation:
civil engineering – the application of planning, designing, constructing, maintaining, and operating infrastructure while protecting the public and environmental health, as well as improving existing infrastructure that may
An NMOS transistor with kn = 1mA/V2 and Vt = 1V is operated with VGS = 2.5V. At what value of VDS does the transistor enter the saturation region? What value of ID is obtained in saturation?
Answer:
a) the point at which the transistor enters the saturation region is 1.5 v
b) the value of ID is obtained in saturation is 1.125 mA
Explanation:
Given the data in the question;
for an NMOS, the condition for the saturation is;
V_DS ≥ V_GS - V_t
V_GS is 2.5 v and V_t is 1 v
so we substitute
V_DS ≥ 2.5 - 1
V_DS = 1.5 v
so the point at which the transistor enters the saturation region is 1.5 v
The drain current I_d in the saturation region;
I_d = 1/2×μₙ×Cₐₓ×W/L×( V_GS - V_t)²
= 1/2Kₙ ( V_GS - V_t)²
our Kₙ is 1 mA/V², V_GS is 2.5v and V_t is 1 v
so we substitute
I_d = 1/2(1 mA/V²)( 2.5 - 1 )²
= 1/2(1 mA/V²)( 2.25)
= 1.125 mA
therefore, the value of ID is obtained in saturation is 1.125 mA
2.13 LAB: Expression for calories burned during workout
This section has been set as optional by your instructor.
The following equations estimate the calories burned when exercising (source):
Men: Calories = ( (Age x 0.2017) — (Weight x 0.09036) + (Heart Rate x 0.6309) — 55.0969 ) x Time / 4.184
Women: Calories = ( (Age x 0.074) — (Weight x 0.05741) + (Heart Rate x 0.4472) — 20.4022 ) x Time / 4.184
Write a program using inputs age (years), weight (pounds), heart rate (beats per minute), and time (minutes), respectively. Output calories burned for men and women.
Output each floating-point value with two digits after the decimal point, which can be achieved as follows:
print('Men: %0.2f calories' % calories_man)
Ex: If the input is:
49
155
148
60
Then the output is:
Men: 489.78 calories
Women: 580.94 calories
299420.1660094
Answer:
ee
Explanation:
This is an over the top question
The program requires a sequence control structure; First, we get input for the variables, and then use the formula to calculate the amount of calories burnt.
The program in python is as follows, where comments (in italics) are used to explain each line.
#This gets input for age, in years
age = int(input("Age (years): "))
#This gets input for weight, in pounds
weight = int(input("Weight (pounds): "))
#This gets input for heart rate, in beats per minutes
heart_rate = int(input("Heart Rate (beats per minutes): "))
#This gets input for time, in minutes
time = int(input("Time (Minutes) : "))
#This calculates the calories burnt for men
calories_man = ((age * 0.2017) - (weight * 0.09036) + (heart_rate * 0.6309) - 55.0969) * time / 4.184
#This calculates the calories burnt for women
calories_woman = ((age * 0.074) - (weight * 0.05741) + (heart_rate * 0.4472) - 20.4022 ) * time / 4.184
#This prints the calories burnt for men
print('Men: %0.2f calories' % calories_man)
#This prints the calories burnt for women
print('Women: %0.2f calories' % calories_woman)
Please note that the program does not check for valid inputs
See attachment for program output
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What is the difference between digital instruments and decimal scaled instruments to measure
Answer Digital measuring instruments are self-contained devices that automatically present the value of the measured quantity on a digital display. And Decimal Scaled Instruments: Record all digits that you can certainly determine from the scale markings and estimate one more digit. I hope this Helped I´m new to this.
Explanation:
Ordan has _ 5 8 can of green paint and _ 3 6 can of blue paint. If the cans are the same size, does Jordan have more green paint or blue paint? Explain.
Answer:
Jordan has more green paints
Explanation:
Given
[tex]Green = \frac{5}{8}[/tex]
[tex]Blue = \frac{3}{6}[/tex]
Required
Which paint does he have more?
For better understanding, it's better to convert both measurements to decimal.
For the green paint:
[tex]Green = \frac{5}{8}[/tex]
[tex]Green = 0.625[/tex]
For the blue paint:
[tex]Blue = \frac{3}{6}[/tex]
[tex]Blue = 0.5[/tex]
By comparison:
[tex]0.625 > 0.5[/tex]
This means that Jordan has more green paints
Configuring an Active Directory Domain Controller
1.Why would an administrator want to use the MAP Toolkit?
2.Based on the results of the MAP inventory you performed in the lab, which operating system was installed on the TargetWindows02b server?
3.Based on the results of the MAP inventory you performed in the lab, which desktop and server software was installed on the TargetWindows02b server?
4.Which tasks, other than the ones performed in this exercise, can administrators use the MAP Toolkit to perform?
5.Which utility is used to transform a standalone Windows Server 2012 R2 system into an Active Directory domain controller?
6.What is the importance of SafeModeAdministratorPassword when using PowerShell to install and configure Active Directory?
7.What considerations should you take into account when choosing a domain name?
Answer:
wat
Explanation:
What role does the president play in developing the federal budget?
A. The president has control over all discretionary spending in the
budget.
B. The president either vetoes the budget and sends it back to
Congress or signs it into law.
C. The president determines which spending programs will be
mandatory.
D. The president decides whether to approve the House or the Senate
spending bill.
The role a president plays in developing the federal budget is: B. The president either vetoes the budget and sends it back to Congress or signs it into law.
What is a federal budget?A federal budget can be defined as a financial plan that is used by the government for the estimation of the revenue and expenditures of a country, especially for a specified period of time, which is often one year.
This ultimately implies that, federal budgets are usually compiled, analyzed and re-evaluated on periodic basis by the executive or federal government of a country.
Generally, the role of a president in developing the federal budget is to either veto the budget and sends it back to Congress or sign it into law.
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Answer:
Explanation:
B. The president either vetoes the budget and sends it back to
Congress or signs it into law.
A cybersecurity manager has scheduled biannual meetings with the IT team and department leaders to discuss how they would respond to hypothetical cyber attacks. During these meetings the manager presents a scenario and injects additional information throughout the session to replicate what might occur in a dynamic cybersecurity event involving the company, its facilities, its data, and its staff. Which of the following describes what the manager is doing?
Developing an incident response plan
Building a disaster recovery plan
Conducting a tabletop exercise
Running a simulation exercise
Explanation:
1. Cybersecurity Strategy Development Guide
The Strategy Development Guide defines a road map that PUCs can follow to design and implement
a structured approach for long-term engagement with utilities on cybersecurity matters. The guide
includes examples from PUCs that demonstrate the process steps and highlights the drivers of
successful outcomes. (2018)
2. Understanding Cybersecurity Preparedness: Questions for Utilities
The Questions for Utilities provides a set of comprehensive, context-sensitive questions that PUCs
can ask a utility to gain a detailed understanding of its current cybersecurity risk management
program and practices. The questions build upon and add to those included in previous NARUC
publications. (2019)
3. Cybersecurity Preparedness Evaluation Tool (CPET)
The CPET provides a structured approach for PUCs to use in assessing the maturity of a utility’s
cybersecurity risk management program and gauging capability improvements over time. The
CPET is designed to be used with the Questions for Utilities on an iterative basis to help PUCs
identify cybersecurity gaps, spur utilities’ adoption of additional mitigation strategies, and inform
cybersecurity investment decisions. (2019)
4. Cybersecurity Tabletop Exercise (TTX) Guide
This guide details the steps that PUCs can take to design and execute an exercise to examine utilities’
and other stakeholders’ readiness to respond to and recover from a cybersecurity incident. The
guide also is helpful to PUCs seeking to exercise their own cybersecurity strategies and capabilities.
Exercise scenarios and examples are included. (2020)
5. Cybersecurity Glossary
The Glossary contains cybersecurity terms used throughout the Cybersecurity Manual, as well as
“terms of art” that utilities may use during discussions with PUCs. (2019)
Components of the Cybersecurity Manual can be used individually but are designed to work together.
NARUC’s intent is to provide a comprehensive set of assessment tools that, when applied, provide a consistent,
complete view of utilities’ cybersecurity preparedness.
Answer:
Conducting a tabletop exercise
Explanation:
Many farms and ranches use electric fences to keep animals from getting into or out of specific pastures. When switched on, an electric current is produced in the fence. When an animal touches the electrified fence, it receives a small shock. What material would be the best choice for making an effective electric fence, and why?
Answer:
Aluminum
Explanation:
The best material to use when creating an electric fence would be Aluminum. Aluminum wiring is incredibly durable and can be easily obtained. Since aluminum is a non-magnetic metal its conducting capabilities far exceed other metallic options in the market and is also why companies choose aluminum for their high tension cable wiring. Aside from being more expensive than other feasible options its durability and conducting capabilities make it easily the best option.
Answer:
Steel Wires
Explanation:
International house of pancakes
To understand the concept of moment of a force and how to calculate it using a scalar formulation.
The magnitude of the moment of a force with a magnitude F around a point O is defined as follows:
MO=Fd
where d is the force's moment arm. The moment arm is the perpendicular distance from the axis at point O to the force's line of action.
A stool at a restaurant is anchored to the floor. When a customer is in the process of sitting down, a horizontal force with magnitude F1 is exerted at the top of the stool support. When the customer is seated, a vertical force with magnitude F2 is exerted on the stool support. If the maximum moment magnitude that the stool support can sustain about point A is MA = 160 Nm , what is the maximum height d1 that the stool can have if the magnitudes of the two forces are F1 = 300 N and F2 = 720 N . Assume that moments acting counterclockwise about point A are positive whereas moments acting clockwise about A are negative.
Answer:
When analyzing forces in a structure or machine, it is conventional to classify forces as external forces;
constraint forces or internal forces.
External forces arise from interaction between the system of interest and its surroundings.
Examples of external forces include gravitational forces; lift or drag forces arising from wind loading;
electrostatic and electromagnetic forces; and buoyancy forces; among others. Force laws governing these
effects are listed later in this section.
Constraint forces are exerted by one part of a structure on another, through joints, connections or contacts
between components. Constraint forces are very complex, and will be discussed in detail in Section 8.
Internal forces are forces that act inside a solid part of a structure or component. For example, a stretched
rope has a tension force acting inside it, holding the rope together. Most solid objects contain very
complex distributions of internal force. These internal forces ultimately lead to structural failure, and also
cause the structure to deform. The purpose of calculating forces in a structure or component is usually to
deduce the internal forces, so as to be able to design stiff, lightweight and strong components. We will
not, unfortunately, be able to develop a full theory of internal forces in this course – a proper discussion
requires understanding of partial differential equations, as well as vector and tensor calculus. However, a
brief discussion of internal forces in slender members will be provided in Section 9.
Explanation:
After cutting a PVC pipe you should use a
to debure the pipe
Answer:
Deburring Tool
Explanation:
A deburring tool is used in order to debur the PVC pipes. They are mostly used for the plastic pipes.
After the PVC pipes are cut, there are burrs on the pipe surface. To remove these burrs, a deburring tool is used. It removes the burrs form the edges of the PVC pipes that results from grinding, cutting, milling, drilling, etc.
The deburring tools are made from high speed steels.
Consider the following statement concerned with the collection of data, and determine the best selection of terms to complete the statement: "The entire group of objects or peopleabout which information is wanted is called the __________ . Individual members are called _____________. The _________is the part that is actually examined in order to gather information.
a. population, units, sample
b. sample, units, target population
c. response group, respondents, nonresponse group
d. population, dependend variables, subgroup
Answer:
a. population, units, sample
Explanation:
In a survey or in a research, population is defined as the total number of people or total number of items in the group that we want to study in a research. It is the entire pool from where a sample is drawn.
An unit is defined as the individual members for which the information or data is collected.
A sample is defined is defined as the group or part of the selection from where the information or data is to be obtained.
The overall group of people should be known as the population.
The individual members should be units
And, the sample represents the part that should be examined.
What are population, units, and the sample?The population refers to the total no of people or items that are required to be studied for the research purpose. In this, the sample should be drawn. The unit refers to the individual members due to which the data should be collected. And, the sample means the portion of the selection from where the data should be collected.
Therefore, the option a is correct.
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Consider the following statement, which is intended to create an ArrayList named a to store only elements of type Thing. Assume that the Thing class has been properly defined and includes a no-parameter constructor.
ArrayList a = /* missing code */;
Which of the following can be used to replace /* missing code */ so that the statement works as intended?
A: new Thing()
B: new ArrayList()
C: new ArrayList(Thing)
D: new ArrayList()
E: new ArrayList<>(Thing)
Answer:
new ArrayList<Thing>()
Explanation:
The syntax to declare an arrayList is:
ArrayList [var-name] = new ArrayList<data-type>()
From the question;
We understand that the variable name is: a
And the data-type is: Thing
So, the ArrayList of type Thing can be defined using:
ArrayList a = new ArrayList<Thing>();
Hence:
None of the options answers the question.
Implement the following Matlab code:
x=zeros(10,128);
t1=[0:1/128:1-1/128];
z=cos(2*pi*2*t1);
x(1,:)=z;
x=reshape(x,1,1280);
figure(1);
plot(x)
Examine Figure 1 – what does it “look like”? Zoom in. Take the FFT of x and explain what you see.
Manipulate the FFT and perform the IFFT to create a signal which is a continuous (i.e. no interpolating zeroes) sinusoid in the “time” domain. Explain the amplitude of the sinusoid.
The amplitude of the sinusoid is 28384 *x soít cos.
What is amplitude?Amplitude is defined as the greatest deviation from equilibrium of a point on a vibrating body or wave in terms of displacement or distance traveled. In most cases, amplitude is calculated by looking at a wave graph and determining the height of the wave from rest. The strength or intensity of the wave is gauged by its amplitude.
Sinusoid is defined as a signal with sine wave characteristics. In the liver, spleen, and bone marrow, sinusoids and irregular tubules transport blood in place of venules and capillaries. The sine or cosine functions from trigonometry form the foundation of sinusoidal signals, which are periodic functions.
Thus the amplitude of the sinusoid is 28384 *x soít cos.
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The I26 profile beam is supported and loaded as in the figure. It is required to calculate the vertical movement of the free end and the rotation of the free end.
Answer:
...
Explanation:
...
Determine the period of each of the following discrete-time signals (if a signal is not periodic, denote its period by infinity)
a) cos(2pi0.15n)
b) cos(2n);
c) cos(pi0.3n) + cos(pi0.4n).
Answer:
a) it is periodic
N = (20/3)k = 20 { for K =3}
b) it is Non-Periodic.
N = ∞
c) x(n) is periodic
N = LCM ( 5, 20 )
Explanation:
We know that In Discrete time system, complex exponentials and sinusoidal signals are periodic only when ( 2π/w₀) ratio is a rational number.
then the period of the signal is given as
N = ( 2π/w₀)K
k is least integer for which N is also integer
Now, if x(n) = x1(n) + x2(n) and if x1(n) and x2(n) are periodic then x(n) will also be periodic; given N = LCM of N1 and N2
now
a) cos(2π(0.15)n)
w₀ = 2π(0.15)
Now, 2π/w₀ = 2π/2π(0.15) = 1/(0.15) = 1×20 / ( 0.15×20) = 20/3
so, it is periodic
N = (20/3)k = 20 { for K =3}
b) cos(2n);
w₀ = 2
Now, 2π/w₀ = 2π/2) = π
so, it is Non-Periodic.
N = ∞
c) cos(π0.3n) + cos(π0.4n)
x(n) = x1(n) + x2(n)
x1(n) = cos(π0.3n)
x2(n) = cos(π0.4n)
so
w₀ = π0.3
2π/w₀ = 2π/π0.3 = 2/0.3 = ( 2×10)/(0.3×10) = 20/3
∴ N1 = 20
AND
w₀ = π0.4
2π/w₀ = 2π/π0. = 2/0.4 = ( 2×10)/(0.4×10) = 20/4 = 5
∴ N² = 5
so, x(n) is periodic
N = LCM ( 5, 20 )
Complete the following sentence.
Tim was recently released from his last job. He was very rigid and would not change a product design once he began a project. He is now working for a new engineering firm and has learned from his last mistake. He is willing to meet with clients to change the needs of each and every situation. As a result, his work is now______?
Answer:
improved
Explanation:
What is a three-dimensional rendering of a product concept called?
O a custom product
o a model
O a project plan
O a concept sketch
Answer:
B. a model
Explanation:
A three-dimensional rendering of a product concept is called a model.
An example of a model used in computer programming is the software development life cycle (SDLC) model.
Software development life cycle (SDLC) can be defined as a strategic process or methodology that defines the key steps or stages for creating and implementing high quality software applications.
Some of the models used in the software development life cycle (SDLC) are;
I. A waterfall model: it can be defined as a process which involves sequentially breaking the software development into linear phases. Thus, the development phase takes a downward flow like a waterfall and as such each phase must be completed before starting another without any overlap in the process.
II. An incremental model: it refers to the process in which the requirements or criteria of the software development is divided into many standalone modules until the program is completed.
III. A spiral model: it can be defined as an evolutionary SDLC that is risk-driven in nature and typically comprises of both an iterative and a waterfall model. Spiral model of SDLC consist of these phases; planning, risk analysis, engineering and evaluation.
Unionized workers often earn more money than non-unionized workers.
O False
O True
Answer:
Its true
Explanation:
false is wrong because I chose it and got it wrong lol
In the context of electronics, the term "ground" is often used to refer to:
1: the negative battery terminal
2:the breadboard
3:the circuit diagram
4:the components
Which one is the answer
Answer:
1: the negative battery terminal
Explanation:
When we design and develop an electrical circuit in electrical and electronics engineering, it is important that we define a reference point for all electronic signals from which we can measure voltage. Although, the voltage passing through a reference point in an electrical circuit is typically 0 Volts.
Also, a ground is a common return path in an electrical circuit for the current flowing through the circuit.
When working on a direct current (DC) circuit that is mainly operated using a battery, the negative terminal of the battery would be the ground (reference point) for all the components connected to the electrical circuit.
Hence, in the context of electronics, the term "ground" is often used to refer to the negative battery terminal.
A plant might be emitting some dangerous pollutants that are environmentally harmful, but completely eliminating them would be so expensive that the plant would have to close, throwing many local inhabitants out of work. Assuming there is an obligation both to preserve jobs and to protect the environment. What is the best technique that should be used to resolve this problem?
Select one:
a. The convergence and divergence techniques
b. The Utilitarian approach
c. The creative middle way
d. The line drawing technique
Answer: c. The creative middle way
Explanation:
As there is both an obligation to preserve jobs and to protect the environment, a creative middle way which involves compromise would be most effective.
The company involved should process and remove the worst pollutants alone while leaving others so that the process will not be so expensive that they have to close down.
They will do this till a better and more environmentally beneficial solution can be found at which point they can then clean up the previous pollutants with the hope that they have not irrecoverably damaged the environment.
Distinguish and describe the stage of the product development life cycle reflected in the following scenario.
Mindy, a recent transplant to the Midwest from the Southwest, has a great idea for building a corn roaster and taking it to state and county fairs and festivals in Michigan and Minnesota. However, she determines that the cost to grow sweet corn throughout the year would be prohibitively expensive.
Answer:Very productive
Explanation:
Why are most products the result of an innovation instead of an invention?
Answer:
they were updated rather than being created
Answer:
Invention is about creating something new, while innovation introduces the concept of “use” of an idea or method.
Single-use earplugs require a professional fitting before they can be used.