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VARVARA [1.3K]
3 years ago
13

Which network is the predecessor of the Internet?

Computers and Technology
1 answer:
disa [49]3 years ago
4 0
The predecessor of the internet is ARPANET better known as Advanced Research Project Agency
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The speed of sound depends on the material the sound is passing through. Below is the approximate speed of sound (in feet per se
german

Answer:

The Java Program for the given problem is as below. Directly copy the code and run it on your machine.

Explanation:

Refer the Screenshots attached for the output.

import java.io.BufferedReader;

import java.io.InputStreamReader;

public class TheSpeedOfSound {

public static void main(String[] s)

{

String medium;

double distance;

double time;

try{

BufferedReader choice = new BufferedReader(new InputStreamReader(System.in));

System.out.println("Enter one of the following: air, water, or steel: ");

medium = choice.readLine(); // reading input i.e. air, water or steel

//check for air water and steel

if (medium.equalsIgnoreCase("air") || medium.equalsIgnoreCase("water") || medium.equalsIgnoreCase("steel")){

System.out.println("Enter the distance the sound wave will travel: ");

distance = Double.parseDouble(choice.readLine()); // read distance value if it is air water or steel

switch (medium)

{

//if medium is air

case "air":

time = distance/1100;

System.out.print("It will take " + time + " seconds.");

break;

//if medium is water

case "water":

time = distance/4900;

System.out.print("It will take " + time + " seconds.");

break;

//if medium is steel

case "steel":

time = distance/16400;

System.out.print("It will take " + time + " seconds.");

break;

}

}

else{

System.out.print("Sorry, you must enter air, water, or steel.");  

}

}

catch(Exception e){

e.printStackTrace();

}

}

}

8 0
3 years ago
A department store plans to upgrade its IT infrastructure to support a new order-processing application with rich features. The
atroni [7]
Assuming price doesn't matter:

Processor: 
I'd recommend Intel Core i7 or similar
Hard Drive: An SSD with at least 2TB will do
RAM: I'd recommend around 8GB or more
Operating System: Linux is one of the best OSes out there, I'd recommend using that.
5 0
3 years ago
Explain the steps users can take to maintain an operating system
Mars2501 [29]

First is it to always clean out all the junk that is left behind by the operating system and the browsers. You can easily do this using the Disk Cleanup utility included on the windows systems. You can clean up the registry. However, you should be very careful with the registry. Any wrong move might mess up everything


Search and destroy viruses and malware on your PC by installing an anti-virus security program and setting up an automated maintenance schedule.


Defragment main and partitioned drives to keep your computer running smoothly.


Uninstall software programs and personal files like pictures, movies and music that are no longer in use to free up more space. The more the space, the faster the PC will go. You can also run the msconfig command in the RUN command prompt to uncheck start up programs that you do not use

4 0
3 years ago
Giving brainliest if you answer question.
Maurinko [17]
The length of the inclined plane divided by the vertical rise, or you can call it run to rise ratio. The mechanical advantage would increase as the slope of the incline decreases, but problem is that the load will have to go a longer distance. The mechanical advantage would be slope of the incline. I also got confused on a question like this and did some research. Hope this helps!
4 0
3 years ago
If your computer is frozen what is something you would do to troubleshoot the problem ​
SpyIntel [72]

Answer:

Ctrl+Alt+Del

Explanation:

It will take you to the task manager and you can highlight the program that is frozen, right click on it and select end task. Or hard reboot as a last resort.

4 0
1 year ago
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