How much time per day does the average U.S. youth spend watching television, playing video games, or using a computer?

Computers and Technology

1 answer:

Lelechka [254]4 years ago

3 0

Answer:

7 hours 30 minutes per day.

Explanation:

Youths of this generation, they say, are addicted to screens. The CNN researchers made their research and claims that the youths average screen time is seven hours and thirty minutes.

This is a possibility as technology have provided that environment of digital communication and entertainment. From TV shows, video games to surfing the internet on computers and smartphones, and social messaging platform, adds up to the screen time of youths on a daily basis.

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The Green Revolution innovations in agriculture based on a package of inputs including all of the following except?

timofeeve [1]

Answer:

natural fertilizers such as compost, green maure, animal manure

Explanation:

The Green Revolution was a movement whose main goal was to drastically increase the agriculture yields in every location. They accomplished this by using hybrid seeds, irrigation, chemical fertilizers, pesticides, fossil fuels, farm machinery, and high-tech growing and processing systems, all of which greatly contributed towards this goal. Therefore the one thing that was not part of the Green Revolution's innovations was natural fertilizers such as compost, green maure, animal manure, mainly due to the fact that these were the traditional use that would lead to the same agriculture yields.

6 0

3 years ago

What is the purpose of the backoff on Ethernet networks?

stellarik [79]

Answer: Please see below as the answer is self-explanatory.

Explanation:

In the original Ethernet standard, IEEE 802.3, the method used to deliver packets within a Ethernet network, is called CSMA/CD, and the acronym includes all the Ethernet features in brief.

Let's explain the different parts of the acronym.

CSMA= Carrier Sense Multiple Access.

This means that when any computer in the network (with no privileges for nobody) has a packet to transmit, it first "listen"if the network is idle. If it is the found condition, deliver the packet, and wait for an acknowledgement.

If past a given time, the ACK is not received, assumes that the packet was lost, due to a collision with another packet coming from another computer (this can happen because the packets don't travel instantaneously from one host to another, so one machine could have started to transmit before the another one could sense this fact).

This process is described by the other part of the acronym:

CD = Collission Detection

In order to avoid this type of problem, before trying to resend the packet, it waits some time, which is called "backoff".

This time increases exponentially each time that it is not possible to send a packet successfully, in order to try to find a moment in which finally the network be clear.

8 0

4 years ago

You are working with a database table that contains data about music. The table includes columns for track_id, track_name (name

german

The statement that completes the query is: bytes / 1000 AS kilobytes

<h3>SQL (Structured Query Language)</h3>

This is the language that is used to retrieve, update, and store data in the database.

<h3>Columns</h3>

From the question, we have the following table columns

track_id
track_name (name of the music track)
composer
bytes (digital storage size of the music track

To retrieve data from the bytes column, we make use of:

SELECT bytes ......

From the question, we understand that this column should be divided by 1000, and the AS command should be used.

So, the query becomes

SELECT bytes / 1000 AS kilobytes .....

Hence, the statement that completes the query is: bytes / 1000 AS kilobytes