A photon of energy 113.6 eV ejects an electron from a hydrogen atom in its ground state, the kinetic energy of ejected electron is 100 eV.
Given data is
Energy of photon, E = 113.6 eV
Energy required for ejecting an electron from the atom is known as ionization energy of an atom.
The ionization energy of hydrogen is 13.6 eV. If the energy of the photon is equal to or greater than the ionization energy of an atom, the electron will get ejected from the atom. The remaining energy will be utilized by the electron in the form of kinetic energy.
Kinetic energy of electron is given by;
K.E = E - IE
Where, E = Energy of photon
IE = Ionization energy of hydrogen
Substituting the values;
K.E = 113.6 eV - 13.6 eV = 100 eV
Therefore, the kinetic energy of ejected electron is 100 eV.
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1.Compare exception handling and handling of warnings in embedded SQL, dynamic SQL, JDBC, and SQLJ.2.Answer the following questions.Why do we need a precompiler to translate embedded SQL and SQLJ? Why do we not need a precompiler for JDBC?SQLJ and embedded SQL use variables in the host language to pass parameters to SQL queries, whereas JDBC uses placeholders marked with a ‘?’. Explain the difference, and why the different mechanisms are needed.
Embedded SQL: In embedded SQL, exceptions and warnings are typically handled using native programming language constructs like try-catch blocks or error handling routines.
Warnings may be retrieved using specific SQL statements or by checking the status variables after executing SQL statements.
- Dynamic SQL: Exception handling in dynamic SQL is similar to embedded SQL, where programming language constructs are used to handle exceptions and warnings. However, dynamic SQL often requires additional care due to the dynamic nature of the queries being executed.
- JDBC: JDBC provides a standardized exception handling mechanism using Java's try-catch blocks. SQLException class is used to handle database-related exceptions and warnings. Additionally, JDBC provides methods to retrieve specific exception details and warnings.
- SQLJ: SQLJ, which is a SQL implementation in Java, uses similar exception handling mechanisms as JDBC. It provides standardized exception classes, such as SQLWarning and SQLException, to handle database-related errors and warnings.
2. Need for precompiler and difference in parameter passing mechanisms:
- Precompiler for embedded SQL and SQLJ: Embedded SQL and SQLJ require a precompiler because they involve embedding SQL statements within host language code (like C/C++ or Java). The precompiler translates the embedded SQL or SQLJ code into standard SQL statements that the database can execute. This translation is necessary to ensure compatibility between the host language and the database.
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In which phase of the ethical hacking methodology would a hacker be expected to discover available targets on a network
Answer:
Scanning and enumeration.
Explanation:
In the scanning and enumeration phase of the ethical hacking methodology, a hacker would be expected to discover available targets on a network.
The scanning and enumeration phase of the ethical hacking follows the reconnaissance phase and it typically involves discovering available targets on a network for informations such as username, password, IP address etc.
A good first step to understanding any kind of text is to :
A. take careful notes
B. create meaning
C. focus on the details
D. find the main idea
Answer:
find the main idea
Explanation:
how to look at things you previously applied to on handshake
Answer:
If you mean what I think you mean, You would want to memorize the handshake. or make signs for it or words. kinda like a dance routine.
Explanation:
Please Help. Which of the following statements about wide area networks are true? Select 3 options.
A. typically uses Eethernet and wireless routers to connect devices
B. connects devices in a large geographic area
C. is usually managed by a single business
D. may be controlled by multiple entities
E. connections usually occur through a public network
Answer:
B, D, E
Explanation:
The public Internet is largest WAN in the world.
A LAN (Local Area Network) typically uses Ethernet and Wireless Routers to connect devices.
A single business would not usually manage a WAN because this would create a monopoly, which is why competition is intentionally created between Internet Service Providers (ISPs), though sometimes a single business could manage a WAN via MPLS, etc.
Answer:
- connects devices in a large geographic area
- may be controlled by multiple entities
- connections usually occur through a public network
Explanation:
A wide area network (WAN) connects devices across a broader area like a city. It can provide connections across multiple countries. A wide area network may be managed and controlled by multiple entities. LANs connect to WANs to create a network of networks. The internet is considered the largest WAN.
(Confirmed on EDGE)
I hope this helped!
Good luck <3
The user interface includes languages, menus, and other facilities by which users interact with various system components. true or false
The statement "The user interface includes languages, menus, and other facilities by which users interact with various system components" is true.
What is a User Interface (UI)?
A user interface is a software program or device that allows users to interact with a computer or electronic device. The user interface (UI) may comprise text, images, buttons, sliders, and other interactive components that a user can use to communicate with the device. A UI provides the user with a graphical representation of the software, data, and components that the user is interacting with.The user interface may include many components, including menus, buttons, sliders, input fields, and graphics, among others. Each of these components serves a unique purpose, allowing the user to interact with the software or device in a particular way. A user interface that is well-designed can improve the usability of a software program or device, allowing users to perform tasks more efficiently and effectively.
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Na2CO3 → Na2O + what
Answer:
CO3
Explanation:
Answer:
C02
Explanation:
........... is a network of network around the world
Answer: Global network
Explanation:
A global network expands the entire world. Connecting networks from all around together, not just in one state but countries and continents as well.
Technician A states that in a brake-by-wire system, the computer detects a
panic stop if the driver quickly releases the accelerator. Technician B states
that brake-by-wire systems are not efficient in detecting panic stops. Who is
correct?
O a. Technician A
O b. Technician B
O c. Both Technician A and Technician B
O d. Neither Technician A nor Technician B
The brake-by-wire system can detect panic stops if the driver abruptly releases the accelerator, so Technician A is only partly accurate. Technician B is mistaken because panic stops can be accurately detected by brake-by-wire devices.
How well do brake-by-wire devices work at spotting panic stops?That period of time and distance can be cut down in a brake-by-wire device. The driver's abrupt release of the accelerator can be detected by the computer, which could be a sign of a panic halt.
What does an anti-lock braking device (MCQ) do?In order to keep tractive contact with the road surface and give the driver more control over the car, ABS works by preventing the wheels from locking up when braking.
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Ismael would like to insert a question mark symbol in his document. What steps will he need to follow to do that?
1. Hold down the Ctrl key while pressing the required key.
2. Hold down the Shift key while pressing the required key.
3. Hold down the key containing the character needed.
4. Hold down the Spacebar while pressing the required key
Answer:
2
Explanation:
what is authenticity
Answer:
the quality of being authentic
Explanation:
A type of topology in which all the systems a connected a main cable
Answer:
Bus topology uses one main cable to which all nodes are directly connected. The main cable acts as a backbone for the network. One of the computers in the network typically acts as the computer server. The first advantage of bus topology is that it is easy to connect a computer or peripheral device.
2
ng and Upgrading Computers: Mastery Test
Select the correct answer.
Which of the following can computer maintenance software determine?
O A.
O B.
O C.
O D.
whether your hard drive is about to fail
whether your monitor or screen is drawing too much power
the humidity inside your desktop computer
the amount of dust inside your laptop
Reset
Next
whether your hard drive is about to fail can computer maintenance software determine.
What is computer maintenance software ?
Software that centralises maintenance data and streamlines maintenance operations is known as a computerised maintenance management system, or CMMS. It aids in maximising the use and accessibility of tangible assets like machines, transportation, communications, plant infrastructures, and other assets. CMMS systems, also known as computerised maintenance management information systems (CMMIS), are used in the manufacturing, energy, transportation, building, and other sectors where physical infrastructure is essential.
A CMMS's database is its fundamental component. The information regarding the assets that a maintenance organisation is responsible for maintaining, as well as the tools, supplies, and other resources needed to do so, are organised using a data model.
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What is the most advanced micro processor in 2022?
Answer:
AMD Ryzen 7 5800X3D Pricing and Availability
AMD Ryzen 7 5800X3D Pricing and AvailabilityAt CES 2022, AMD announced the Ryzen 7 5800X3D processor, an 8-core processor that is the first to feature AMD's 3D V-Cache technology, delivering the fastest 1080p gaming across select titles when compared to others in the market3.
Stock images are available for use whith a proper
A stock image is one that has already been shot and made available for others to use with permission (usually, a license).
What is a stock image?
A stock image is a pre-existing photograph or illustration that is licensed for commercial use by businesses, individuals, and organizations. These images are typically created by professional photographers and graphic designers and are made available for purchase through online platforms or agencies.
Stock images are often used in marketing materials, websites, and social media posts to convey specific messages or concepts. They are a cost-effective solution for businesses that need high-quality visuals but may not have the resources or time to create them from scratch. Stock images are usually sold under a royalty-free or rights-managed license, depending on the intended use and distribution of the image.
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Explain why this scenario could put an organization in jeopardy of losing some of its workforce.
Situation: The IT manager decides to add a new software application to replace an older albeit less efficient software application.
Answer:
Not educating its employees on the new software.
why do we analyze the expected running time of a randomized algorithm and not its worst-case running time?
When values generated by a random number generator are used to determine an algorithm's behavior in addition to its input, the algorithm is said to be random.
You examine what is anticipated for this reason. A worst-case scenario analysis simply considers the input. We rarely have complete control over how an algorithm will be used, therefore we frequently are unable to derive an average-case measurement that is likely to be accurate. The worst-case scenario provides us with a performance upper limit. An algorithm will never do worse than what we determine if its worst case analysis is done. The random coin tosses determine the algorithm's execution time when one is given. The predicted running time is the anticipated length of time given the coin tosses.
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How do I do this?
Someone Please help
Answer:
I am done solving there was a synthetic error very sorry I tried to help for 30mins
What are documents that are authored by technology bodies employing specialists, engineers, and scientists who are experts in those areas?a. White notebooksb. Blue papersc. Requests for comments (RFCs)d. Cybersecurity feeds
c. Requests for comments (RFCs) are documents that are authored by technology bodies employing specialists, engineers, and scientists who are experts in their respective areas.
The IETF uses the RFC process to publish and standardize protocols, data formats, and other technologies used on the Internet. The authors of RFCs are experts in their fields and the documents are peer-reviewed and approved by the IETF. The RFCs are important because they define the standards that ensure interoperability between different devices and systems on the Internet. Overall, the RFC process is a key aspect of the development and standardization of the technologies used on the Internet.
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What action should you take when using removable media in a sensitive compartmented information.
The action should be taken when using removable media in a sensitive compartmented information is retrieved classified documents promptly from printers.
What is sensitive compartmented information facility?
The sensitive compartmented information facility (SCIF) is the location where, the sensitive cognition is discussed to maintain the privacy of it.
When using removable media in a sensitive compartmented information is retrieved, classified documents promptly from printers.This action is taken to make the imformation more secure and prevent it to leak.Thus, the action should be taken when using removable media in a sensitive compartmented information is retrieved classified documents promptly from printers.
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PLEASE HELP!!! THIS IS DUE TODAY! WILL MARK BRAINLIEST!
Five Rules of Digital Citizenship and provide one example for each rule
please help me! i'm begging you!!
Answer:
-be nice
-be respectfull
-dont bully
-if u see somthing say somethung
-dont use same password for everything
Explanation:
a file that serves as a starting point for a new document
Answer:
The appropriate response is "Template".
Explanation:
A template would be a document that might open new opportunities for such a new folder. Because once you launch a framework, that's already pre-formatted sometimes in a manner. This same template will indeed presumably have such identification and phone number environment throughout the upper left, a person receiving identify location somewhat below something on the opposite side, a response body location further below, as well as a signature, identify at either the lower part.Which term describes the process used to plan every step of a game's animation
What can cause noise?
Heat in the image sensor
A high ISO
A long exposure
All of the above
Answer:
All of the above
Explanation:
It al depends on the type of questions
Answer: THE ANSWER IS TRUE
Explanation: I JUST TOOK THE TEST
When deciding on what to wear each day, most people do not use the decision-making process.
Please select the best answer from the choices provided
ОТ
F
Answer:
false
Explanation:
i took the test g
Please see the attached workbook. What is the url query string for the extract in the attached worksheet?.
http://www.imdb.com/ is the url query string for the extract in the attached worksheet as a Query String is the string passed to the url in the form of parameters, it can contain one or more parameters, each parameter is separated using the ampersand.
What Does Query String Mean?
The part of a URL known as a query string is used to pass information to a back-end database or web application. Because the HTTP protocol is stateless by design, we need query strings. You must continue to operate a website in order for it to function as more than a brochure (store data).
There are several methods for doing this: You can use something like server-side session state on the majority of web servers. Cookies can be used to store data on the client. You can also use a query string in the URL to store data.
All URLs on the internet can be divided into three parts: protocol, file (or program) location, and query string. The majority of the time, the protocol you see in a browser is HTTP.
The location is represented by the hostname and filename in their typical format (for instance, www.brainly.com/somefile.html), and the query string is whatever comes after the question mark symbol ("?").
For example, in the URL below, the bolded area is the query string that was generated when the term "database" was searched on the brainly website, //www.brainly.com/search.aspx?q=database§ion=all.
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How can i print an art triangle made up of asterisks using only one line of code. Using string concatenation (multiplication and addition and maybe parenthesis)?
#include <iostream>
int main(int argc, char* argv[]) {
//One line
std::cout << "\t\t*\t\t\n\t\t\b* *\t\t\b\n\t\t\b\b* *\t\t\b\b\n\t\t\b\b\b* *\t\t\b\b\b\n\t\t\b\b\b\b* *\t\t\b\b\b\b\n\t\t\b\b\b\b\b* * * * * *\t\t\b\b\b\b\b\n";
return 0;
}
Yes, it is possible with a single line and using escape sequences, but it is tedious and not recommended. Instead, you can use loops to write more readable and easy on the eyes code. We only used the cout method (C++). Good luck!
Users on your network report that they have received an email stating that the company has just launched a new website. The email asks employees to click the website link in the email and log in using their username and password. No one in your company has sent this email. What type of attack is this
Answer:
Phishing
Explanation:
A phishing attack may be defined as a attack made on social platform that is used to steal the data, which includes the credit card details or credentials of individuals, etc. It is a fraudulent attempt to collect important information.
In the context, the employees receives an email asking them to click on the link and login using their credentials. It is a fraud email which no one in the company has sent. So this is a phishing attack.
What term did don norman define as story that puts the operation of the system into context, weaving together all of the essential components, providing a framework, a context, and reasons for understanding?.
Don Norman defined the phrase "story" as a conceptual model. Conceptual models are ethereal, psychological depictions of proper task execution.
In order to systematize processes, people use conceptual models subconsciously and intuitively. For instance, using calendars and diaries to make appointments is a common mental model. Knowing how common and effective conceptual models are helps developers create software that is matched to users' conceptual frameworks.
Designers build on preexisting frameworks and knowledge by producing interfaces and applications that mirror conceptual models, which makes it simpler for users to learn how to use the new product.
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how to save an edited document.
You can either hit the save button (usually at the top of the window) or use CTRL-S or CMD-S (depending if you're on Windows or Mac).