who developed vacuum tube and when?​

Answers

Answer 1

Answer:

In 1904, John Ambrose Fleming invented the first vacuum tube.

Explanation:

Answer 2
Jon Ambrose Flemming invented the vacuum tube in 1904

Related Questions


1. Light of wavelength 900x10-9 m is emitted by a source. What is its frequency?​

Answers

therefore the frequency = 6×10^14

The frequency of the light is "[tex]6\times 10^{14}[/tex]".

Given values:

Wavelength,

[tex]\lambda = 900\times 10^{-9} \ m[/tex]

As we know the formula,

→ [tex]Frequency = \frac{C}{\lambda}[/tex]

By substituting the values, we get

→                   [tex]= \frac{3\times 10^8}{900\times 10^{-9}}[/tex]

→                   [tex]= \frac{10^8}{300\times 10^{-9}}[/tex]

→                   [tex]= 6\times 10^{14}[/tex]

Thus the above response is correct.  

Learn more about frequency here:

https://brainly.com/question/14459326

i think i have a virus on my computer what am i supposed to do

Answers

Answer:

call like a phone or computer company and ask wjat thry can do

What does this mean

Answers

Answer:

"Y YUR Y YUB I CUR YY 4 ME"

Explanation:

thats what i read lol, i dont know the meaning though

PLEASE HELP ITS TIMED Ishmael would like to capture a selected portion of his screen and then capture actions he performs on that selected portion. What should he do?


Use the Video from My PC command.

Use the Insert Screen Recording control.

Create a poster frame.

Use an embed code.

Answers

Answer:

Option B

Hope this Helps!!! :)

List 10 examples of computer ethics
(please give even 1 if you can, I need it urgently) ​

Answers

Answer:

It could be the quality of computer you have?

Explanation:

Please answer these computer fill in the blanks
1) operators are the _______________ used in formulas to perform a particular calculation
2) the____________feature of Excelhelps to copy the formula quickly
3) Excel provides over ________________used to perform calculations
4) ____________ category of functions includes functions for calculation, and tracking principal and interest
5) ___________ functions returns one of two results you specify based on whether the value is TRUE or FALSE

Answers

Answer:

best

cool

Explanation:

A writing guide in making a project correctly.

a.project proposal
b.project plan
c.project format
d.project template ​

Answers

Answer:

b

Explanation:

B Project plan hope this helps

Which activity is performed during high-level design in the V-model?
A. gathering user requirements
B. understanding system design
C. understanding component interaction
D. evaluate individual components
E. design acceptance test cases

Answers

Answer:

B or E don't sure which one

What percentage of teens say they have witnessed cyberbullying?

50

95

70

35

Answers

A Majority of Teens Have Experienced Some Form of Cyberbullying. 59% of U.S. teens have been bullied or harassed online, and a similar share says it's a major problem for people their age

254 × (×) igual 20×()682883993

What is Exploring technology?

Answers

Answer:

Investigating Technology is a thorough, activity based, course that acquaints understudies with innovation and its effect on society.

Explanation:

Answer: Exploring Technology is a comprehensive, action-based, course that introduces students to technology and its impact on society.

Explanation: it on googIe....

A loan of $12000 was borrowed from the bank at 14% per annum calculate the interest on the loan at the end of the first year ?​

Answers

Answer:

lmasjsjsjssjjssjjssjsjjsksakkalaaooaa

Loan borrowed = $12,000

Percentage of interest on the loan per annum = 14%

We know that :

[tex]\color{hotpink}\tt \: Simple \: interest = \color{plum}\frac{principal \times rate \times time}{100} [/tex]

In this case :

principal = $12000rate = 14%time = 1 year

Simple interest at the end of the first year :

[tex] = \tt \frac{12000 \times 14 \times 1}{100} [/tex]

[tex] = \tt \frac{168000}{100} [/tex]

[tex]\color{plum}\tt = \$1680[/tex]

Thus, interest = $1680

Therefore, total interest on the loan at the end of one year = $1680

the computer stores the data and information on the ______​

Answers

Answer:

Primary memory, it might be cpu but i think its primary memory

Explanation:

WHAT IS MULTIMEDIA SUPPOSED TO MEAN ???

Answers

Answer:

using more than one medium of expression or communication

Answer:

It basically means using more than one expression or form of communication

Explanation:

Determine if true or false Goal Seek immediately attempts to apply the function to the adjacent cells.

Answers

Answer:

The answer is "False".

Explanation:

This function the part of Excel, that allows a way to resolve the desirable result by manipulating an underlying expectation. This function is also called What-if-Analysis, which is used to test, and an error approach to address the problem by linking guesses before the answer comes.  On the Data tab, throughout the Data Tool category, and select Target Check it provides a    reference that includes a formula to also be solved throughout the Set cell box.

In your own words, describe invention.

Answers

Answer:

An invention is an action of doing or creating something. Typically, a process of something.

Explanation:

Hopefully, it helps!

Answer:

Creating something new

Explanation: Invention is something that you originally create and don't copy from anyone else. The microwave was invented in 1945 that changed of how people used kitchen appliances, invention is kinda just another word for creativity (since it's the process of it!)

Hope this helps and make sure to thank me!

Explanation:

6. A presentation is widely used to present and effectively​

Answers

Answer:

A Presentation is a collection of slides arranged in a systematic order. 2) A presentation ...

Explanation:

Please give thanks to all my answers and please mark as brilliant and please follow me

press _________ to toggle the selected range as bold​

Answers

Answer:

press the b that i in a dark shade that is bold

Can you all help me with this?

Answers

Answer:

(1)mobile smart phone.

(2)server computer.

(3)desktop computer

(4)laptop computer

(5)all in one computer

Select the correct answer.
What model defines data structures and expands software architecture and components?
OA.
architectural design model
OB.
data design model
O c.
interface design model
D.
component-level design model
Reset
Next

Answers

Answer: data design model

Explanation:

Para que se utilizan las siguientes plataformas: Matlab, Labview, VisualBasic, Mplab, Micropic, PicCompiller

Answers

Answer:

MATLAB (abreviatura de MATrix LABoratory, «laboratorio de matrices») es un sistema de cómputo numérico que ofrece un entorno de desarrollo integrado (IDE) con un lenguaje de programación propio (lenguaje M). Está disponible para las plataformas Unix, Windows, macOS y GNU/Linux.

Entre sus prestaciones básicas se hallan la manipulación de matrices, la representación de datos y funciones, la implementación de algoritmos, la creación de interfaces de usuario (GUI) y la comunicación con programas en otros lenguajes y con otros dispositivos hardware.

LABVIEW (acrónimo de Laboratory Virtual Instrument Engineering Workbench) es una plataforma y entorno de desarrollo para diseñar sistemas, con un lenguaje de programación visual gráfico pensado para sistemas hardware y software de pruebas, control y diseño, simulado o real y embebido.

Visual Basic (VB) es un lenguaje de programación dirigido por eventos, desarrollado por Alan Cooper para Microsoft. Este lenguaje de programación es un dialecto de BASIC, con importantes agregados. Su primera versión fue presentada en 1991, con la intención de simplificar la programación utilizando un ambiente de desarrollo.

MPLAB es un editor IDE gratuito, destinado a productos de la marca Microchip. Este editor es modular, permite seleccionar los distintos microcontroladores soportados, además de permitir la grabación de estos circuitos integrados directamente al programador.

MICROPICUn PIC es un circuito integrado programable (Programmable Integrated Circuited), el cual contiene todos los componentes para poder realizar y controlar una tarea, por lo que se denomina como un microcontrolador. Los PIC son una familia de microcontroladores tipo RISC fabricados por Microchip Technology Inc. y derivados del PIC1650, originalmente desarrollado por la división de microelectrónica de General Instrument.

PICCOMPILER

El Portable C Compiler o Compilador de C Portable (también conocido como pcc o, algunas veces, como pccm - máquina de compilador de C portable) fue uno de los primeros compiladores para el lenguaje de programación C escrito por Stephen C. Johnson de los Laboratorios Bell a mediados de los 70, basado, en parte, en las ideas de un trabajo previo de Alan Snyder en 1973.

Explanation:

MATLAB (abreviatura de MATrix LABoratory, «laboratorio de matrices») es un sistema de cómputo numérico que ofrece un entorno de desarrollo integrado (IDE) con un lenguaje de programación propio (lenguaje M). Está disponible para las plataformas Unix, Windows, macOS y GNU/Linux.

Entre sus prestaciones básicas se hallan la manipulación de matrices, la representación de datos y funciones, la implementación de algoritmos, la creación de interfaces de usuario (GUI) y la comunicación con programas en otros lenguajes y con otros dispositivos hardware.

LABVIEW (acrónimo de Laboratory Virtual Instrument Engineering Workbench) es una plataforma y entorno de desarrollo para diseñar sistemas, con un lenguaje de programación visual gráfico pensado para sistemas hardware y software de pruebas, control y diseño, simulado o real y embebido.

Visual Basic (VB) es un lenguaje de programación dirigido por eventos, desarrollado por Alan Cooper para Microsoft. Este lenguaje de programación es un dialecto de BASIC, con importantes agregados. Su primera versión fue presentada en 1991, con la intención de simplificar la programación utilizando un ambiente de desarrollo.

MPLAB es un editor IDE gratuito, destinado a productos de la marca Microchip. Este editor es modular, permite seleccionar los distintos microcontroladores soportados, además de permitir la grabación de estos circuitos integrados directamente al programador.

MICROPICUn PIC es un circuito integrado programable (Programmable Integrated Circuited), el cual contiene todos los componentes para poder realizar y controlar una tarea, por lo que se denomina como un microcontrolador. Los PIC son una familia de microcontroladores tipo RISC fabricados por Microchip Technology Inc. y derivados del PIC1650, originalmente desarrollado por la división de microelectrónica de General Instrument.

PICCOMPILER

El Portable C Compiler o Compilador de C Portable (también conocido como pcc o, algunas veces, como pccm - máquina de compilador de C portable) fue uno de los primeros compiladores para el lenguaje de programación C escrito por Stephen C. Johnson de los Laboratorios Bell a mediados de los 70, basado, en parte, en las ideas de un trabajo previo de Alan Snyder en 1973.

A client needed a software application to be delivered with a demo of the working software at every stage of development. The project head ensured that all the team members were in the same location. The work was completed in a short duration with minimal documentation and through continuous customer interaction. Which model did the team use? A agile B. spiral C waterfall D. RAD ​

Answers

Answer:

Rapid Application Development (RAD)

Explanation:

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.

RAD is an acronym for rapid application development and it is a model that is typically based on the concepts of prototyping and iterative development technique with minimal documentation or planning involved.

In the RAD model, more priority is given to the development of the software while minimal attention is given to documentation or planning. Therefore, it focuses on developing softwares within a short period of time and using prototypes (working modules) such as templates, codes, processes, tools, etc.

Basically, the RAD model comprises of five (5) phases and these includes;

I. Business modeling.

II. Data modeling.

III. Process modeling.

IV. Application generation.

V. Testing and turnover.

In conclusion, the RAD model allows software application to be delivered with a demo of the working software at every stage of development for continuous customer interaction.

Answer:

Its rad ladies and gentlemen

Explanation:

Question #5
Multiple Choice
What is used within an HTML tag for additional information?
O attribute
O anchor
O hyperlink
metadata

Answers

Answer: Attribute

Explanation: Attribute is used in HTML tags for additional information. Correct on Edg 2021.

Answer: attribute

Edge '23

Which letter shows the ball when it has the maximum kinetic energy

Answers

Answer:

D.

Explanation:

Kinetic energy can be defined as an energy possessed by an object or body due to its motion.

Mathematically, kinetic energy is given by the formula;

[tex] K.E = \frac{1}{2}MV^{2}[/tex]

Where;

K.E represents kinetic energy measured in Joules. M represents mass measured in kilograms. V represents velocity measured in metres per seconds square.

Generally, when the final velocity at which a physical object moves is equal to zero (0), then it possess maximum kinetic energy.

Hence, the letter which shows the ball when it has the maximum kinetic energy in the graph attached is D.

To keep your computer working efficiently, it is a good idea to _____ unnecessary files. delete defragment save archive

Answers

Hey the answer to this is delete or remove. because it is a good idea to remove old files that your not using.

Hope this helps

-scav

Help!!
What’s the inputs and outputs of a printer
And what’s the inputs and outputs of a digital assistant/ Alexa??

Answers

Answer:

Input of printer - text

Output of Printer - text printed on paper

Input & output of digital Alexa - Voice/sound

Explanation:

Input for a printer is the text data entered into any of the file formats that can be printed.

Output of a printer is the text printed on a piece of paper.

Input of a digital assistant is in the form of voice

Output of a digital assistant in the form of sound

Evaluate each condition as to whether it is true or not.
You can join the Army if you are over 17 and healthy. Have you met those requirements if you are 16 and healthy?
You can earn a scholarship if you have an ACT over 30 or you are valedictorian of your high school. Have you eamed a scholarship if you have an ACT
of 34 but are not the valedictorian?

Answers

Answer:

For the first one you have not met those requirements because you are still 16, for the second one you have met those requirements because you can either have a score over 30 (which you have 34) or be a valedictorian

Explanation:

Above

Accenture began its own Cloud journey in 2015, after our internal IT organization recognized the significant advantages to be gained in leveraging Cloud capabilities at scale. Today, which percentage of Accenture's infrastructure and processes are in the Cloud?

Answers

Answer: 95%

Explanation:

Accenture began its own Cloud journey in 2015, and invested in about $3 billion to move to cloud. This has helped the company in timely delivery and achieving organizational goals.

Today, the percentage of Accenture's infrastructure and processes that are in the Cloud is about 95%. Its HR, sales, finance, legal system etc are all in cloud.

The percentage of Accenture's infrastructure and processes that are stored or located in the Cloud is: 95%.

A Cloud can be defined as the elastic leasing of pooled computer resources (physical hardware) over the Internet and through the use of virtualization.

Accenture is one of the world's largest management and technological consulting company that provide services such as:

Database managementConsultingStrategy planningOutsourcing

Basically, Accenture help business organizations in the implementation of data governance and management policies, in order to ensure the organization's data is trustworthy and reliable.

In 2015, Accenture started its own Cloud journey after recognizing the significant advantages it stand to gain or benefit in leveraging Cloud capabilities at a larger scale.

Consequently, the percentage of Accenture's infrastructure and processes that are stored or located in the Cloud is 95 percent.

Read more: https://brainly.com/question/23844088

How many decimals should we keep in electrical calculations?

Answers

Answer:

2 I think

Explanation:

70s music or russian music

Answers

Explanation:

BB cgbfyhcthcfgvxdrgjyfddg

Don’t listen to any

a person who creates a computer virus is called

Answers

Answer:

A person who creates computer virus is known as hacker.

Other Questions
[A] is making 25 sundaes with mint, chocolate, and vanilla ice cream.3/5 of the sundaes are mint ice cream and 1/2 of the remaining sundaes are chocolate. The rest will be vanilla. How many sundaes will be vanilla? Ismail has 44 sweets more than Johan. If the number of sweets Johan has is of the7/11 of the number of sweets Ismail has, how many sweets do they have altogether? Two blocks connected by a string are pulled across a horizontal surface by a force applied to one of the blocks, as shown to the right. The mass of the left block m1 = 1.4 kg and the mass of the right block m2 = 4.9 kg. The angle between the applied force and the horizontal is = 54. The coefficient of kinetic friction between the blocks and the surface is = 0.38. Each block has an acceleration of a = 3.6 m/s2 to the right. 11. Select from below the best estimate for the decimal that is equivalent to 100.5%A. 0B. 1C. 100D. 1000 plz help asap!! which statement is not true about the data shown by the box plot below ? What is the value of x? Answer the photo below thanks which branch of government can impeach and remove the President and Vice President The Value of (441)2 (440)2 is :(i) 841 (ii) 1 (iii) 881(iv) 0 Identify the inequality graphed on the number line. A) x - 8 < 3 B) x + 8 < 3 C) x - 8 < -3 D) x + 8 < -3 BRAINLIEST only for effort-y answersIn the graph, which vertical line (V) and horizontal line (H) can be used to graph point E?A) V: x = 2; H: y = 2B) V: y = 2; H: x = 2C) V: x = 2; H: y = 2D) V: x = 2; H: y = 2 An example of a nucleotide is?A. cytosine, ribose, and deoxyriboseB. guanine, deoxyribose, and phosphateC. uracil, deoxyribose, and phosphate D. thymine, ribose, and phosphate What is the main function of the organs thyroid gland, adrenal glands, and pancreas? Simplify the expression:97k+9kk plz help how are theravada and mahayana different? Dado los puntos p1 (-7/2-9/2) y p2 (5/2, 3/2) calcular la representacin grfica, d p1 p2, pto medio de p1 p2, la pendiente (m) de la recta que pasa por medio de ellos. Porfavor aydenme la tarea es para el viernes y no entendi Write the formulas for the reactants and products. Balance the chemical equation. Combination/Synthesis Reaction: Sodium + Oxygen > Solve 14p + 56 = 23 for p.Question 1 options:A) 124B) 38 C) 23D) 6 45 is 3% of what number?quick I need an answer!hurry pls! Beryllium oxide, Beo, is an electrical insulator. Howmany moles of beryllium oxide qre in a 250 gramsample of the compound?