1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
grigory [225]
3 years ago
6

What were the technological innovations that allowed for the rapid expansion of the railroads?

Computers and Technology
1 answer:
liraira [26]3 years ago
5 0

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.

You might be interested in
Assign testResult with 1 if either geneticMarkerA is 1 or geneticMarkerB is 1. If geneticMarkerA and geneticMarkerB are both 1,
OverLord2011 [107]

Answer:

Following python statement will give the assignment to testResult as specified:

if((geneticMarkerA == 1) or (geneticMarkerB ==1)):

   testResult = 1

if((geneticMarkerA ==1) and (geneticMarkerB == 1)):

   testResult = 0

if((geneticMarkerA == 0) and (geneticMarkerB == 0)):

   testResult = 0

Explanation:

In above statements or and and operator are used to check the conditions of set of values present in variable geneticMarkerA and geneticMarkerB.

Based on if the condition evaluate to true or false respective values to testResult varaible is assigned.

Following is sample run for above statements:

geneticMarkerA = 1

geneticMarkerB = 0

if((geneticMarkerA == 1) or (geneticMarkerB ==1)):

   testResult = 1

if((geneticMarkerA ==1) and (geneticMarkerB == 1)):

   testResult = 0

if((geneticMarkerA == 0) and (geneticMarkerB == 0)):

   testResult = 0

print(testResult)

Output

1

4 0
3 years ago
Which library research databases include information about articles published in magazines, journals, and newspapers? question 1
Alecsey [184]

Answer:

periodical databases

Explanation:

Among the various databases you can now access in a library, the periodical databases contains the text and other information about articles published in magazines, journal and newspapers.

This database allows you for example to easily search for all articles written about a specific event or person, and it will return you the list of articles you can then read from a single spot, no matter where or when the article was written.

8 0
3 years ago
Which of the following, (1) money deposited in a bank account, (2) student recording her answer to a question in an online test,
tamaranim1 [39]

An Information System is when key components such as hardware, software, data, and process are combined for collection, processing, and distribution of data. All of these scenarios mentioned on the choices above are considered transactions in an information system. There is an exchange of information that fully satisfies the request of a user and describes what transactions in information systems are. They are good examples of users entering information whether, physically or electronically, as data into computers. This data is then processed, and the database changes adjusted with some being made permanent.

3 0
3 years ago
Jeremy is designing a website for a florist. He intends to discuss the web design with his client. Which tool should Jeremy use
stiv31 [10]

Answer:

C.  layout of each page with its respective elements

Explanation:

A layout  of each page with its respective elements will give the client a good idea of the final product and help him confirm his desires/requests towards the creation of the Web site.  Most people are visual, especially about things they don't fully understand, so a clear and visual representation is best.

<u>A. Bulleted lists and titles</u>... won't give the idea of the full layout of the Web site.

<u>B. chart depicting</u>....  that's more a tool for the programmer than the client, although user flow is important, it isn't as much as the visual aspect of each page.

<u>D. pictures and screenshots of websites of other florists..</u>. That could be a useful aid on the first contact, but the question implied the Web site is already in progress... so that wouldn't help much.

<u>E.  programming code for the website</u>, absolutely not, the client hired Jeremy not to have to deal with that.

5 0
3 years ago
Assuming dataFile is an ofstream object associated with a disk file named payroll.dat, which of the following statements would w
svet-max [94.6K]

Answer:

dataFile << salary;

Explanation:

To write salary to a file (payroll.dat) using ofstream, you make use of the following instruction:

<em>ofstream dataFile; </em>

<em>myfile.open ("payroll.dat"); </em>

<em>myfile <<salary; </em>

<em>myfile.close();</em>

<em />

This line creates an instance of ofstream

<em>ofstream dataFile; </em>

This line opens the file payroll.dat

<em>myfile.open ("payroll.dat"); </em>

This is where the exact instruction in the question is done. This writes the value of salary to payroll.dat

<em>myfile <<salary; </em>

This closes the opened file

<em>myfile.close();</em>

<em />

<em />

8 0
3 years ago
Other questions:
  • Given a int variable named yesCount and another int variable named noCount and a char variable named response, write the necessa
    9·1 answer
  • Will upvote all answers
    7·1 answer
  • Some cases have ____, also called spacers, which are round plastic or metal pegs that separate the motherboard from the case, so
    9·1 answer
  • Help me on this question
    14·1 answer
  • In the accompanying figure, the split double arrow mouse pointer____.
    7·1 answer
  • You're working in a table that has three columns and five rows. Since the first row will be a header row, you want it to span al
    6·1 answer
  • Write a class called Date that represents a date consisting of a day, month, and year. A date object should have the following m
    10·1 answer
  • Guess The Song:
    9·1 answer
  • Which of the following database object hold data?
    13·2 answers
  • I'm not sure how to solve this problem
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!