1: A baseball is hit 4 feet above the ground leaves the bat with an initial speed of 98 ft/sec at an angle of 0 45 is caught by an outfielder at a height of 3 feet.
Answer:
299.36 feet
Explanation:
[tex]To \ find \ the \ distance \ of \ the \ ball \ from \ the \ home \ plate. \\ \\ From \ the \ given \ information:[/tex]
[tex]Height \ h = 4 \ ft[/tex]
[tex]Initial \ speed \ V_o = 98 \ ft/s ec[/tex]
[tex]The \ angle \ \theta = 45^0[/tex]
[tex]Acceleration \ due \ to \ gravity (g)= 32.2 \ ft/s[/tex]
[tex]U_x = V_o \ cos 45 = \dfrac{98}{\sqrt{2}}[/tex]
[tex]U_y = V_o \ sin 45 = \dfrac{98}{\sqrt{2}}[/tex]
So;
[tex]S_y = u_y t - \dfrac{1}{2}gt^2[/tex]
[tex]-1 =\dfrac{98}{\sqrt{2}}t - \dfrac{1}{2}*32*1.85t^2[/tex]
By solving:
[tex]t_1 = 4.32 \ sec[/tex]
Thus;
[tex]horizontal \ distance = U_x t[/tex]
[tex]= \dfrac{98}{\sqrt{2}}\times 4.32[/tex]
[tex]\mathbf{=299.36 \ feet}[/tex]
[tex]\mathbf{Thus \ , the \ distance \ from \ the \ home \ plate \ = \ 299.36 \ feet}[/tex]
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 )
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
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:
A pressure of elevation 4.8m on a tank containing oil read 34.7kpa.Another gauge at elevation 2.2m read 57 5kpa.Cumpute specific weight density and specific gravity of the liguid
Answer:
Explanation:
From the given information:
Pressure at the elevation 4.8 m = 34.7 kPa
Pressure at the elevation 2.2 m = 57.5 kPa
Recall that:
At the pressure of depth "h";
p = ρgh
where;
ρgh = 34.7 × 10 ³
ρ × 9.81 × h = 34.7 × 10³
ρh = 34.7 × 10³/9.81
ρh = 3.54 × 10³ ----- equation (1)
ρg(h + 4.8 - 2.2) = 57.5 × 10³
ρ × 9.81 × (h + 2.6) = 57.5 × 10³
ρ (h + 2.6) = 57.5 × 10³ / 9.81
ρ (h + 2.6) = 5.86 × 10³ ------ equation (2)
From equation (1) and (2);
The density of the oil ρ is determined to be = 0.8939 × 10³ kg/m³
≅ 893.9 kg/m³
The specific weight w = ρg
w = 0.8939 × 10³ × 9.81
w = 8769.159
w = 8.75 × 10³ kg/m²/s²
The specific gravity SG = [tex]\dfrac{\rho _{oil}}{\rho_{water}}[/tex]
= [tex]\dfrac{0.8939 \times 10^3}{10^3}[/tex]
= 0.8939
≅ 0.894
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.
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.
A wedge has a mechanical advantage greater than 1 because the output force of the wedge is greater than the input force. a. TRUE b. FALSE
Answer:
True
Explanation:
Mechanical Advantage Of A Wedge
It is the ratio of the output force to the input force. A wedge applies more force to the object (output force) than the user applies to the wedge (input force), so the mechanical advantage of a wedge is greater than 1
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:
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.
Read related link on:
https://brainly.com/question/20937766
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.
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.
Which control would be used to manually feed a cutting tool longitudinally across the workpiece?
The carriage handwheel is used to manually position and/or hand feed the carriage in the longitudinal or Z axis.
IamSugarBee
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:
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
Read more about Python programs at:
https://brainly.com/question/22841107
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:
If Nick's average stride length is 2.7 feet, how many strides will it take him to walk to school?
Answer: how far is the school?
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
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:
You have signed an employment agreement two years ago with Al-Handasah Construction Company stipulating your obligations for respecting confidentiality during at least 5 years. Few weeks ago, you have changed employer and work now for Mony Corporation where you proposed to use some industrial processes developed by your ex-employer Al-Handasah Construction. By doing this, what intellectual property you may have infringed?
Select one:
a. Patent
b. Trade secrets
c. Trademark
d. Copyright
Answer: Trade secrets
Explanation:
Patent is a license from the government that is given to a a firm for a period of time and this gives the firm the sole right to sell a particular product. Patent is normally given to firms when there's an innovation by the firm.
A trademark is an intellectual property and it consist of symbols, words, design or phrase which helps to differentiate one company from another company.
Copyright simply means the right that's given to an individual or firm to copy. It is the legal right that the owner of an intellectual property has. It is a crime when one copies the work of someone else without the approval from the owner of the work.
Trade secrets are the formula, recipe or process used by a company during production process which gives such company an edge over its competitors.
With regards to the definition above, the answer is a trade secret. This is because some industrial processes used by his former company are being exposed and told to the new company.
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:
name as much parts in a car that you know
Answer:
engine suspension brake and more
Explanation:
Three piezometers located 1000 m apart bottom in the same horizontal aquifer. Piezometer A is due south of piezometer B, and piezometer C is to the east of the line AB. The surface elevations of A, B, and C are 95 m, 110 m, and 135 m respectively. The depth of water in A is 5 m, in B is 30 m, and in C is 35 m. Determine the direction of groundwater flow through the triangle ABC and calculate the hydraulic gradient.
Answer:
Hydraulic gradient=0.0173
Explanation:
If you stand on one leg, the load exerted on the hip joint is 2.4 times your body weight. Assuming a simple cylindrical model for a hip implant, with a cross-sectional area of 5.6 cm2, estimate the following:
a) The corresponding stress on the hip implant in a 175-lb individual: ………………. [MPa] (0.2)
b) If the hip implant is made of Ti-6Al-4V (120 GPa elastic modulus), what is the strain for the current loading conditions? ………………. (0.1)
c) Complete solution (please show your work on a scrap paper, scan it, and insert the image below) (0.1)
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]
A sample of soil has a volume of 0.45 ft^3 and a weight of 53.3 lb. After being dried inan oven, it has a weight of 45.1 lb. It has a specific gravity of solids of 2.70. Compute its moisture content and degree of saturation before it was placed in the oven.
Answer:
a) the moisture content before it was placed in the oven is 18.18%
b) degree of saturation for soil is 72.19%
Explanation:
Given the data in the question;
Moisture Content = [(Weight of soil before dry - dry weight) / dry weight] × 100
so we substitute
Moisture content = [(53.3 - 45.1) / 45.1 ] × 100
= (8.2/45.1) × 100
= 18.18%
Therefore the moisture content before it was placed in the oven is 18.18%
Dry Unit Weight = dry weight / volume
Dry Unit Weight = 45.1 lb / 0.45 ft³
Dry Unit Weight = 100.22 lb/ft³
we know that;
dry unit weight = (Specific gravity × unit weight of water) / (1 + e)
we also know that; unit weight of water is 62.43 lbf/ft³
so we substitute
e = (2.70×62.43 / 100.22) - 1
e = 1.68 - 1
e = 0.68
so void ratio e = 0.68
Now we determine the degree of saturation using the equation;
degree of saturation = (Moisture content × specific gravity) / void ratio
we substitute
degree of saturation = ( 18.18% × 2.7) / 0.68
= 0.49086 / 0.68
= 0.7219 ≈ 72.19%
Therefore degree of saturation for soil is 72.19%
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:
...
Technician a says that diesel engines can produce more power because air in fuel or not mix during the intake stroke. Technician be says that diesel engines produce more power because they use excess air to burn feel who is correct
Answer:
Technician be says that diesel engines produce more power because they use excess air to burn feel who is correct
Explanation:
He is correct as many engines are run by diesel. It produces more power as that is how cars produce more power.
Earth completes one full ____ on its axis every 24 hours
Answer:
rotation
Explanation:
I just answered this!
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.
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