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iris [78.8K]
3 years ago
13

What are the three uses of a screw?​

Computers and Technology
2 answers:
inysia [295]3 years ago
7 0

Answer:

fasten things, hold/pull things, amplify force

Explanation:

A screw is a type of simple machine.

It can be used to fasten 2 or more things together (ex planks of wood). It can also be used to pull something by screwing into the material and staying there (ex corkscrew for opening wine bottles). It can also be used to magnify force. You can tighten a wingnut by hand and get a significant amount of vertical holding power.

elena-s [515]3 years ago
5 0
- they are used to fasten two pieces of wood or metal.
- screw jack is used for lifting one side of a car or a truck, in order to change the punctured wheel.
- a cork screw is used for pulling out cork from the bottles of wine or ketchup.
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What were the technological innovations that allowed for the rapid expansion of the railroads?
liraira [26]

Answer:

There are different phases of railroad expansion with the innovations in technology.

Explanation:

Few of the technological innovations are described below that leads in railroad expansion more rapid.

1. Centralized Traffic control (CTC) is introduced in 1960's that is used to control the traffic on railroads using different signal control.

2. In 1990's after computer technology involvement, railway ticket and reservation system is automate and being centralized. That makes the railroad expansion improve.

3. Bullet train technology has been introduced, that makes the railway trains more faster.

4. Electric trains has been introduced to use green energy and reduce the dependency on the fuel to make environment clean and green.

5 0
2 years ago
I need to create a method named "root positive". which will either print the square root of the number passed to it or if the nu
rjkz [21]

Answer:

Explanation:

The following code is written in Java. It is a method that calculates the square root of a number as requested. The method first checks with an IF statement if the parameter value is a positive number and then calculates the square root and prints it to the screen. Otherwise, it prints Number must not be negative. A test case has been provided in the main method and the output can be seen in the attached image below.

import java.util.Scanner;

class Brainly {

   public static void main(String[] args) {

       Scanner in = new Scanner(System.in);

       System.out.print("Enter a number of type double to calculate square root:");

       double num = in.nextDouble();

       rootPositive(num);

   }

   public static void rootPositive(double num) {

       if (num > 0) {

           System.out.println(Math.sqrt(num));

       } else {

           System.out.println("Number must not be negative.");

       }

   }

}

5 0
3 years ago
Whereas enterprise network convergence focuses on the consolidation of traditionally distinct voice, video, and data communicati
Vinil7 [7]

Answer: Unified communication

Explanation: Unified communication is the communication technique in which merges various communication routines into a individual business.It works as the phone system which helps in increment of productivity in an organizational business.

The unifying of voice,data/information,video etc is done for optimizing and improving the business that also results in  faster communication rates, secure communication etc.

4 0
3 years ago
A device that is connected to the Internet is known as<br> a. Nexus. Backbone. Node. Link.
ikadub [295]
A device connected to the internet is known as a Node.
3 0
2 years ago
Read 2 more answers
Write a c++ program that accepts a string from the user and then replaces all occurrences of the letter e with the letter x
mixer [17]

Answer:

#include <iostream>

using namespace std;

int main()

{

   string str;

   cout<<"Enter the string: ";

   cin>>str;

   for(int i=0;str[i]!='\0';i++){

       if(str[i]=='e'){

           str[i]='x';

       }

   }

   cout<<"the string is: "<<str<<endl;

  return 0;

}

Explanation:

First, include the library iostream for using the input/output instructions.

Create the main function and declare the variables.

Then, use the cout instruction and print the message on the screen.

cin store the string enter by the user into a variable.

After that, take a for loop and if-else statement for checking the condition if the string contains the 'e', then change that alphabet to 'x'.

This process continues until the string not empty.

Finally, print the updated string.

6 0
3 years ago
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