Problem 2. Impulse Response of Discrete-Time LTI System (8 points) Let (nand yind be the input and output signals of an LTI system H, respectively. Fourier transform of its impulse response is given as follows: e-1 (1-enle-3291) 1 - Te-3 + be-321 H() a) Simplify (en) and find the difference equation of the system (in other words, describe the relationship between a[n) and y[n]). Hint: You can use partial fraction expansion for simplifying the H(en). 6 b) Let hin be the impulse response of the system. Find the first five samples (n = 0,1,2, 3, 4) of h[n]. Assume y[n] = 0 for n <0, if needed. ANSWER: c) Is the system FIR or IIR? Calculate the energy of the impulse response.
Answers
The total energy of the impulse response is E_h = 3.2842. The total energy of the impulse response is given by the sum of the squares.
a) The Fourier transform of the impulse response is given as follows:
H(e^jw) = e^-jw(1-e^-3jw)/(1-e^-jw)(1-e^-2jw)
To simplify the expression (e^-jw) and find the difference equation of the system, we must use partial fraction expansion.
H(e^jw) = (A/(1-e^-jw)) + (B/(1-e^-2jw)) + (C/(1-e^-3jw)) where A, B and C are the constants associated with each partial fraction.The constants are determined by solving the equation A(1-e^-2jw)(1-e^-3jw) + B(1-e^-jw)(1-e^-3jw) + C(1-e^-jw)(1-e^-2jw) = e^-jw(1-e^-3jw)After solving this equation for A, B and C we get the following equation:H(e^jw) = (e^-jw/2) [(1+ e^-2jw)/(1-e^-jw)] + (e^-jw/2) [(1- e^-2jw)/(1-e^-2jw)] + (1/2) [(1- e^-jw)/(1-e^-3jw)]The difference equation of the system is found by taking the inverse Fourier transform of H(e^jw) and is given as follows:y[n] = (1/2)x[n] + (1/2)x[n-1] + (1/2)y[n-1] - (1/4)y[n-2] - (1/4)y[n-3]b) The impulse response of the system can be found by taking the inverse Fourier transform of H(e^jw). We have the following:h[n] = [1/2)delta[n] + (1/2)delta[n-1] + (1/2)h[n-1] - (1/4)h[n-2] - (1/4)h[n-3]We can find the first five samples of h[n] by substituting n = 0, 1, 2, 3 and 4 in the above equation as follows:h[0] = 1/2h[1] = 1h[2] = 7/8h[3] = 11/16h[4] = 43/32c) The system is IIR (Infinite Impulse Response) because its impulse response has infinite duration.To calculate the energy of the impulse response, we can use the Parseval's theorem. Parseval's theorem states that the total energy of a signal in the time domain is equal to the total energy of its Fourier transform in the frequency domain.The total energy of the impulse response is given by the sum of the squares of its samples as follows:E_h = h[0]^2 + h[1]^2 + h[2]^2 + h[3]^2 + h[4]^2= (1/4) + 1 + (49/64) + (121/256) + (1849/1024)The total energy of the impulse response is E_h = 3.2842.
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Related Questions
A site is underlain by a soil that has a unit weight of 118 lb/ft3. From laboratory shear strength tests that closely simulated the field conditions, the total stress parameters were measured to be C total = 250 lb/ft2 and φ total = 29°. Estimate the shear strength on a horizontal plane at a depth of 12 ft below the ground surface at this site in lbs/ sq ft
Answers
Answer: the shear strength at a depth of 12 ft is 1034.9015 lb/ft²
Explanation:
Given that;
Weight of soil r = 118 lb/ft³
stress parameter C = 250 lb/ft²
φ total = 29°
depth Z = 12 ft
The shear strength on a horizontal plane at a depth of 12ft
ζ = C + δtanφ
where δ = normal stress
normal stress δ = r × z = 118 × 12 = 1416
so
ζ = C + δtanφ
ζ = 250 + 1416(tan29°)
ζ = 250 + 1416(tan29°)
ζ = 250 + 784.9016
ζ = 1034.9015 lb/ft²
Therefore the shear strength at a depth of 12 ft is 1034.9015 lb/ft²
After the stakeholders agree on the project scope, Ria finds out that her CEO wants more information in the research report. She asks you to include details on the market opportunities for new product ideas, technical constraints, and design considerations. How do you manage this additional scope?
Answers
The goal of a project manager is to increase earnings while maintaining the quality of their products and customer services. They're referred to as "change-makers."
There is a huge demand for project managers. Project managers appear to be in greater demand than ever, with "1.5 million chances every year."
In every industry, project managers are needed. Project managers work to increase revenues without compromising the quality of their products or their client services in industries like IT, manufacturing, healthcare, etc. They're referred to as "change-makers."
The project manager must possess technical, leadership, business, analytical, and problem-solving skills in order to meet the clients' ever-changing needs.
Consider yourself the project manager for a provider of instructional software. A new assignment is given to you to create a digital grading platform for a nearby high school. You consult with teachers, school administrators, the school IT department, and the district superintendent before starting the project to discuss it and receive their feedback.
You kept your ideas organised during these meetings by noting the essential project elements that the stakeholders desired.
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note that tje dimensions are shown with respect to horizontal and vertical tangent lines the circle. y r = 5 in С 10 in 6 in 1 1 X (10 in.
Answers
The main answer is: The given information does not provide enough context to determine the specific question being asked.
What can be inferred from the given dimensions and tangent lines of the circle?Based on the given information, it is unclear what specific question is being asked. Without additional context or clarification, it is not possible to determine the relationship between the dimensions, tangent lines, and the circle. It is essential to provide more information or specify the desired outcome in order to provide a meaningful answer.
Understanding the relationship between dimensions, tangent lines, and circles can be explored through various geometric concepts and principles. Exploring topics such as circle properties, tangent lines, and their intersections can shed light on the connections between these elements.
By delving into the principles of geometry, one can gain a deeper understanding of how different geometric elements interact and influence one another.
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Kim deposits her annual bonus into a savings account that pays 8% interest compounded annuallyThe size of her bonus increases by $2,000 each year, and the initial bonus amount is $5,000. Determine how much will be in the account immediately after the fifth deposit
Answers
The amount that would be in Kim's account immediately after the fifth deposit would be $50,998.0
How to find the amount that would be in the accountWe have the amount in Year 0 to be the first deposit. This is given as $5000.
The formula used to calculate this is
P x (1+r) + T
Where P = principal
r = interest rate, hence 1 + 8% = 1.08
T is the increases of 2000
The bonus is said to increase by 2000 every year
2000 + 5000 = $7000
In year 1.
5000 x 1.08 + 7000
= 12,400
In year 2 add 2000 to 7000
(12,400 * 1.08) + 9000
= 22,392
Do the same for year 3
(22,392 * 1.08) + 11,000
= 35,183.36
Do the same for the 4th year
(35,183.36 * 1.08) + 13,000
= $50,998.0288
Therefore we can see that after the deposit is done 5 times the account would have $50,998.02 in it
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Suppose that you have the following declaration.
enum cars {FORD, GM, TOYOTA, HONDA};
cars domesticCars = FORD;
The statement:
domesticCars = static_cast(domesticCars + 1);
sets the value of domestiCars to _________.
Answers
[answer removed by author]
describe an engineering advance that has led to greater knowledge about the solar system
Answers
Answer:
Space Rovers
Explanation:
The engineering advancement of the invention space rovers has changed space exploration tremendously. The first space rover ever to go out onto another planet was made by NASA and put on mars to learn more about the red planet and see if there where any plausible signs of past or maybe even present life. This mission was incredibly successful and for the first time in space exploration history, there was a spacecraft that you could move around that could with do the conditions of the planet for weeks, months, sometimes years at a time, moving around taking pictures and constantly collecting data. This was revolutionary for scientists, this way they could get copious amounts of information just on rover and not having to send multiple crafts only to die in the first few hours but sending back a relative amount of information. With rovers you can have them collect samples and bring the back to earth, not something that could’ve been done without a human, until rovers. They have completely changed and improved collecting data from other planets and have been one of the most revolutionary inventions when it comes to space exploration.
This is what I put for the answer, hope it helps in some way.
the voltage valve at which a zirconia O2S switches from rich to lean and lean to rich is
A) 0.5v (500mv)
B) 0.45v (450mv)
C) 0.25v (250mv)
D) 0.90v (900)
Answers
A rogue access point is any unauthorized access point added to a network. Which of the below represent ways to mitigate and protect a network against
rogue access points? Please select all correct answers.
a. Put access points in the same virtual LANS (VLANS) as your workstations,
b. Put access points in separate virtual LANS (VLANS)
c. Only use Wireless Access Points (WAPs) sold by Aruba Networks
d. Only use Wireless Access Points (WAPs) sold by Cisco
e. Use site survey tools to identify hosts and Wireless Access Points (WAPs) in the wireless network
f. Check connected MAC addresses to identify unauthorized hosts
Answers
A rogue access point is an unauthorized access point added to a network. The ways to mitigate and protect a network against rogue access points are b. Put access points in separate virtual LANS (VLANS), e. Use site survey tools to identify hosts and Wireless Access Points (WAPs) in the wireless network and f. Check connected MAC addresses to identify unauthorized hosts
b. Put access points in separate virtual LANs (VLANs): Separating access points into different VLANs can help isolate and manage traffic, reducing the potential impact of a rogue access point on the network. This approach helps to limit the scope of possible unauthorized access and enhances overall network security.
e. Use site survey tools to identify hosts and Wireless Access Points (WAPs) in the wireless network: Regularly conducting site surveys can help network administrators identify any unauthorized access points that may have been added to the network. By utilizing site survey tools, one can detect and remove rogue access points before they cause significant security issues.
f. Check connected MAC addresses to identify unauthorized hosts: Monitoring and verifying the MAC addresses of devices connected to the network can help identify unauthorized hosts, including rogue access points. Network administrators should maintain an updated list of authorized MAC addresses and cross-reference this list with the devices connected to the network. This allows for the quick identification and removal of any unauthorized access points.
Therefore, the correct options are B, E, and F.
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How many grains are on the surface of the head of a pin? assume that the head of a pin is spherical with a 1-mm diameter and has an astm grain size of 10
Answers
Answer:
Given, diameter of pin head d = 1 mm = 1/25.4 = 0.0394 in Surface area of a pinhead, A = 4pr^2 =
Explanation:
eesh
If the probability of a bit error is p, what is the probability of a single, double, and triple error in a 10-bit word? Express it in terms of p.
Answers
Answer:
single bit error: 10pdouble bit error: 45p²triple bit error: 120p³Explanation:
The probability of n bits being in error is 10Cn × p^n, where ...
10Cn = 10!/(n!(10-n!))
10C1 = 10
10C2 = 45
10C3 = 120
This is the product of the probability that n bits can be in error and the number of ways that n bits can be chosen from the 10 in the word.
n = 1: 10p
n = 2: 45p²
n = 3: 120p³
A computer feedback fuel system has poor driveability when cold. Technician A says
that this could be due to a bad oxygen sensor. Technician B says to check for
external causes such as an intake manifold leak or incorrect fuel system pressure.
Who is correct?
Technician A
Technician B
Both A and B
Neither A nor B
Answers
Answer:
B is correct I believe
A man who lived on the top floor of a twenty story building had to go up and down daily for work, and of course, for food and the other necessities. On most days he could only ride the elevator to the fifteenth story, and he would have to walk the rest of the way. When it rained, however, he could ride all the way up to the twentieth story. Why?.
Answers
Main Answer:
On most days he could only ride the elevator to the fifteenth story, and he would have to walk the rest of the way
sub heading:
explain elevator?
Explanation:
1.elevator, also called lift, car that moves in a vertical shaft to carry passengers or freight between the levels of a multistory building.
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What long shaft a tool works in a combination with a impact wrench air to install Lugnuts on wheels
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Dependence of oxidation on the temperature 10 points total The process temperature is an important parameter for the oxide growth process. To get an estimate for the temperature dependence of the Deal-Groove formula, the following considerations can be used. All processes (transport, diffusion and reaction) that are used in the Deal-Groove model are thermally activated. Thus, the dependence on the growth parameters on the temperature T can be estimated by: X(T) = Xpe Xe{A, B, B/A} (5) Here kB = 8.617 x 10-5 eV/K is the Boltzmann Constant and EX is the activation energy for the parameter. X, is the value for the corresponding parameter at T =0 K. Please note that this is not a 'physical activation energy but rather an average/fit parameter for all the physical and chemical thermally activated processes relevant for the process. In the original publication by Deal and Groove, they gave the following parameter sets for dry oxidation: Oxidation temperature in 'C A in um Bin um²/h 1000 0.165 0.0117 1200 0.040 0.045 a)EXct and X, for A, B and B/A
a) Use the given values for the parameters A and B in the table above, along with equation ?? to derive the activation energies EXd and zero temperature values X(T = 0 K) for all three parameters A, B and B/A. Then use this calculate the corresponding values of A,B, B/A for the following temperatures: 1000°C, 1200°C, 800°C and 900 °C.
b) Plot estimates for other temperatures 2 points Use the obtained values from the previous sub-task along with the full Deal-Groove model equation for Z:(t) to plot the oxide thickness over time (0-100h) using at least 20 data points each for the following temperatures: 1000°C, 1200°C, 800°C and 900 °C. Assume Zo = Om.
Answers
Answer:
mama mia
Explanation:
haha
Describe some three materials with nanocrystalline structures and identify each example of those material
Answers
Ultrafine crystalline grains in the nanometer range that are separated by grain boundaries or interfaces define nanocrystalline materials.
A nanocrystalline structure: what is it?A polycrystalline substance with a few nanometer-sized crystallites is referred to as a nanocrystalline (NC) substance. These materials bridge the gap between traditional coarse-grained materials and amorphous materials devoid of long-range organisation. Materials that contain clusters, crystallites, or molecules with diameters between 1 and 100 nm are said to be nanostructured materials.
What is an example of a nanostructure?The gecko's foot, iridescent butterfly wings, and hydrophobic leaves are just a few examples of nanostructures found in nature. Scientists and engineers are employing biomimicry to develop new goods with these nano-inspired qualities.
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do not stop on railroad tracks or within __________ feet of the crossing.
Answers
Answer:
i think there are track pants or underwear ahh sorry wrong message
According to federal law, it is illegal to stop your vehicle on railroad tracks. In addition, drivers are required to stop at least 15 feet away from the nearest rail of a railroad crossing if a signal device is not present or is malfunctioning.
If there is a signal device present and it indicates that a train is approaching, drivers must stop their vehicles at a safe distance from the crossing. The reason for this law is to prevent accidents and ensure the safety of drivers and passengers in vehicles, as well as pedestrians and train passengers. Therefore, it is important to always be aware of railroad crossings and to follow the rules of the road when approaching them.
You should not stop on railroad tracks or within 15 feet of the crossing. It is crucial to maintain a safe distance from the tracks to prevent accidents involving trains and vehicles. Remember to always follow traffic signals and laws at railroad crossings to ensure safety for everyone.
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An assembly of positive and negative plates and separators in electrolyte is called what?
Answers
Answer:
A battery
Explanation:
There are several words used to describe such an assembly:
pile, battery, electrolytic cell
Calculate the settlement of a foundation supported on a sand stratum using the Schmertmann method. Square foundation 3 m by 3 m, foundation bearing capacity q 165 kPa, installation depth D 1.5m
Answers
Answer:
Explanation:
From the given information:
The square foundation = 3m by 3m
capacity q = 165 kPa
depth = 1.5 m
assuming soil unit weight = 17.5 kN
q = 17.5 × 1.5
q = 26.25 kPa
Settlement \(Se = C_1C_2 (\overline q - q) (\dfrac{I_z}{E_s})D_f\)
where;
\(c_1 = 1-0.5 (\dfrac{q}{\overline q -q})\)
\(c_1 = 0.905\)
\(c_2 = 1+ 0.2 log ( \dfrac{t}{0.1})\)
suppose t = 1year
\(c_2 = 1+ 0.2 log ( \dfrac{1}{0.1})\)
\(c_2 = 1.2\)
Using Schertmann method.
\(\mathtt{ I_t = 0.5 }\)
\(\dfrac{length }{breadth } = \dfrac{3}{3}=1\)
∴
E⁵ = \(2.5 q_e\)
E⁵ = 2.5 × 165
E⁵ = 412.5 kPa
Hence: \(Se = C_1C_2 (\overline q - q) (\dfrac{I_z}{E_s})D_f\)
\(Se = 0.905 * 1.2(165-26.25) (\dfrac{0.5}{412.5})*1.5\)
\(\mathbf{Se = 0.273 \ m}\)
A firm is considering the purchase of a new machine to increase the output of an existing production process. Of all the machines considered, the management has narrowed the field to the machines represented by the cash flows shown as follows: Machine 1. Initial Investment (-$50,000). Annual Operating Income ($22,815)). [Machine 2 Initial Investment (-$60,000) . Annual Operating Income($25,995)) (Machine 3 (-$75,000). Annual Operating Income ($32,115)) (Machine 4 (-$80,000), Annual Operating Income ($34,371) Machine 5 ($100,000), Annual Operating Income (542,485)) If each of these machines provides the same service for 3 years and the minimum attractive rate of return is 12% which machine should be selected? (Hint: Choose the Machine that will provide the greatest income.) a. Machine 1 b. Machine 3 c. Machine 2 d. Machine 4 e. Machine 5
Answers
A production process is a way to use economic resources, such as labour, expensive machinery, or land, to create goods and services for customers.
Thus, The manufacturing process often deals with how to make things for sale efficiently and productively so that customers may get them quickly without sacrificing the product's quality or production.
Organizations can employ a variety of production techniques depending on their manufacturing goals, production numbers, and technology tools or software systems.
A critical aspect of a manufacturing manager's job is making broad-based production decisions that affect the productivity levels of product creation and sales.
Thus, A production process is a way to use economic resources, such as labour, expensive machinery, or land, to create goods and services for customers.
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I have an AC waveform with the voltage peak value of 100 V. I'm trying to find the RMS value of the voltage
Answers
Answer:
98 x 100=9,00
Explanation:
1.What is three phase? why it is needed?
2. What is the condition to be balanced? Write down voltage equation of a balanced 3 phase voltage source and draw their phasor diagram.
Answers
1. We can see here that three phase refers to a type of electrical power transmission that uses three alternating current (AC) waveforms that are 120 degrees out of phase with each other. This is different from single-phase power transmission, which uses only one AC waveform.
What is voltage?Voltage, also known as electric potential difference, is a measure of the electrical potential energy per unit of charge in an electrical circuit. It is defined as the amount of work required to move a unit of electric charge between two points in a circuit, typically measured in volts (V).
Three-phase power is needed because it allows for more power to be transmitted over a given amount of wire or cable. With three-phase power, the power is delivered in a more consistent manner, which means that there is less voltage drop over long distances.
2. In order for a three-phase system to be balanced, the three phases must have the same amplitude and be 120 degrees out of phase with each other. The voltage equation of a balanced three-phase voltage source is given by:
Vph = Vline / √3
where Vph is the phase voltage and Vline is the line voltage. The phasor diagram for a balanced three-phase system shows three sinusoidal waveforms that are displaced by 120 degrees from each other.
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Craftspeople saw their jobs disappear with the advent of manufacturing. Today, some manufacturing jobs are disappearing in favor of digital
solutions. What parallel can you draw between these two phenomena?
O A. Solving problems with technology can create other problems in society.
O B.
The economy calls for innovations that will force all of its sectors to grow.
O C. Engineering, will allow for re-training of workers who have lost jobs.
O D. Costs of manufacturing and digital solutions are proportionally similar.
Reset
Next
Answers
Solving problems with technology can create other problems in society, as job displacement is a common consequence. Therefore, the correct option is (O A) Solving problems with technology can create other problems in society.
A parallel that can be drawn between the disappearance of craftspeople's jobs with the advent of manufacturing and the current trend of manufacturing jobs being replaced by digital solutions is that both phenomena involve the displacement of workers due to technological advancements.
In both cases, the introduction of new technologies and methods of production has resulted in a shift in the job market and the need for different skill sets.
This can lead to job loss and economic challenges for those affected.
Additionally, both situations highlight the importance of adapting and retraining workers to meet the demands of the evolving economy.
While the specific technologies and industries involved may differ, the underlying theme of technological progress impacting the workforce remains consistent.
Therefore, the correct option is (O A) Solving problems with technology can create other problems in society.
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when building a new house what is the order of the first four construction steps?
Answers
Supervising is therefore crucial to your new home's construction.
PLUMBING AND WIRING. PLUMBING AND WIRING. After the concrete structure of your house is ready, you can start installing the plumbing and electrical systems.INSTALLATION OF DOORS AND WINDOWS NSTALLATION OF. ...FINISHING. FINISHING.What is construction?Construction is a general term meaning the art and science to form objects, systems, or organizations,[1] and comes from Latin construction (from com- "together" and strewer "to pile up") and Old French construction. To construct is the verb: the act of building, and the noun is construction: how something is built, the nature of its structure.
In its most widely used context, construction covers the processes involved in delivering buildings, infrastructure, industrial facilities and associated activities through to the end of their life.
It typically starts with planning, financing, and design, and continues until the asset is built and ready for use; construction also covers repairs and maintenance work, any works to expand, extend and improve the asset, and itsve entual demolition, dismantling or decommissioning.
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Janelle doesn’t discuss her romantic relationships at work, because she prefers to keep her private life separate from her professional life. Which theory describes Janelle’s professional situation best?
Group of answer choices
A. social information processing
B. apologia
C. communication privacy management
D. self-disclosure maintenance
E. chronemics
Answers
Janelle doesn't discuss her romantic relationships at work, because she prefers to keep her private life separate from her professional life. The theory that best describes Janelle's professional situation is Communication Privacy Management (CPM).
Communication Privacy Management (CPM) is a theory that explores how individuals regulate their communication of private information to others. This theory describes Janelle's professional situation best as she prefers to keep her private life separate from her professional life.
CPM explains that individuals choose to reveal or conceal personal information based on a series of criteria. The criteria include content, context, level of risk, and value of privacy. Content refers to the personal information being disclosed, context refers to the environment or situation where the information is being shared, risk level is the degree to which the information being shared can cause harm, and value of privacy refers to how much value an individual places on their privacy.
Communication Privacy Management (CPM) is the theory that describes Janelle's professional situation best. She chooses not to discuss her romantic relationships at work as she wants to keep her personal life separate from her professional life.
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In a pipe of diameter 350mm and length 75mm, water is flowing at a velocity of 2.8m/s. If the Kinematic viscosity of water is 0.012 Stokes, calculate the Reynolds number,Evaluate the coefficient of friction
Answers
Explanation:
the answer is in picture
in cold climates, water pipes may freeze and burst if proper precautions are not taken. In such an occurrence, the exposed part of a pipe on the ground ruptures, and water shoots up to a height z2, of 52 m. Estimate the gage pressure of water in the pipe. The gage pressure of water in the pipe is determined to be kPa..
Answers
Answer:
Gauge Pressure = 408.3 KPa
Explanation:
The pressure inside the pipe can be given in terms of the elevation, by the following formula:
P = ρgΔz
where,
P = Absolute Pressure = ?
ρ = Density of Water = 1000 kg/m³
g = acceleration due to gravity = 9.8 m/s²
Δz = elevation = 52 m
Therefore,
P = (1000 kg/m³)(9.8 m/s²)(52 m)
P = 509.6 KPa
Now, for gauge pressure:
Gauge Pressure = P - Atmospheric Pressure
Gauge Pressure = 509.6 KPa - 101.3 KPa
Gauge Pressure = 408.3 KPa
Anything you want to do in Hootsuite can be found in the ________, with the main workspace in the _________?
Settings; Streams
Sidebar; center
Header; Sidebar
Nav-panel; dashboard
Answers
Answer:
Anything you want to do in Hootsuite can be found in the ___ Sidebar_____, with the main workspace in the ___center______
Sidebar; center
Explanation:
The main workspace of the Hootsuite is located in the center. The sidebar is where the core access to the Hootsuite functionality, like Streams, Inbox, Planner, Analytics, Publisher, and the App Directory, is obtained. Hootsuite is a media management platform for curating content, scheduling posts, managing team members, and measuring performances.
Sadie is the props manager for a small community theater. Because she does not have a part onstage, Sadie is not part of the Performing Arts pathway of the Arts, AV Technology and Communication cluster.
True
False
Answers
Answer:
I think it is false!
Explanation:
Answer: I think it's true
Explanation:
Because if you were part of a play, you would have a part but if you work on props, you don't have a part onstage.
Calculate the velocity of a motor cyclist who travelled a distance of 200 min
10 seconds.
Answers
Answer: The velocity of a motor cyclist who travelled a distance of 200 m in 10 seconds is 20 m/sec.
Explanation:
Given: Distance = 200 m
Time = 10 seconds
Formula used to calculate velocity is as follows.
\(Velocity = \frac{Distance}{Time}\)
Substitute the value into above formula as follows.
\(Velocity = \frac{Distance}{Time}\\= \frac{200 m}{10 sec}\\= 20 m/sec\)
Thus, we can conclude that the velocity of a motor cyclist who travelled a distance of 200 m in 10 seconds is 20 m/sec.
What is the current in a circuit if the voltage applied to a load is 492 volts? the connected load contains two series-connected resistive heating elements that are each rated for 2. 8 kw at 250 volts.
Answers
The current in the circuit would be approximately 10,958.33 A.
What is Ohm's law?Ohm's law states that the "current in a circuit is equal to the voltage applied to the circuit divided by the total resistance of the circuit".
To solve this problem, we need to first determine the total resistance of the two resistive heating elements in the circuit.
Since the heating elements are connected in series, their resistances add up, so the total resistance of the circuit is
⇒ 2 x 2.8 kW / 250 V = 11.2 kW / 250 V = 0.0448 kW / V.
As per Ohm's law, the current in the circuit would be
⇒ 492 V / 0.0448 kW / V = 10,958.33 A.
Therefore, the current in the circuit would be approximately 10,958.33 A.
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