Software that enables the organization to centralize data is called A. Data Repository B. Data Base Management System C. Data Warehouse D. Data Mart E. Data File
Answers
Answer:
B. Data Base Management System
Explanation:
A database management system (DBMS) can be defined as a collection of software applications that typically enables computer users to effectively and efficiently create, store, modify, retrieve, centralize and manage data or informations in a database. Generally, it allows computer users to efficiently retrieve and manage their data with an appropriate level of security.
Generally, a database management system (DBMS) acts as an intermediary between the physical data files stored on a computer system and any software application or program.
A data dictionary can be defined as a centralized collection of information on a specific data such as attributes, names, fields and definitions that are being used in a computer database system.
In a data dictionary, data elements are combined into records, which are meaningful combinations of data elements that are included in data flows or retained in data stores.
This ultimately implies that, a data dictionary found in a computer database system typically contains the records about all the data elements (objects) such as data relationships with other elements, ownership, type, size, primary keys etc. This records are stored and communicated to other data when required or needed.
Hence, a software that enables the organization to centralize data, manage the data efficiently while providing authorized users a significant level of access to the stored data, is called a Data Base Management System (DBMS).
Related Questions
he ________ feature, located on the Ribbon, allow you to quickly search for commands or features.
Answers
Answer:
The Quick Access Toolbar feature, located on the Ribbon, allow you to quickly search for commands or features.
.
The Quick Access Toolbar feature, located on the Ribbon, allow you to quickly search for commands or features.
Where is the Quick Access toolbar?Shortcuts to frequently used features, options, actions, or option groups are gathered in the Quick Access Toolbar. In Office programs, the toolbar is typically buried beneath the ribbon, but you can opt to reveal it and move it to appear above the ribbon.
Note that a toolbar that may be customized and contains a set of actions that are not dependent on the tab that is now shown is called the Quick Access Toolbar (QAT). It can be found in one of two locations: left upper corner, over the ribbon (default location) under the ribbon in the upper-left corner.
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jimmy is preparing a slide show; what is also known as a visual aid in a presentation?; alicia is working on a presentation about the top 10; harry wants to change the background of all his presentation slides; which feature of a presentation program interface provides; what is the name of the option in most presentation applications; which element should he use in order to hold their attention?; post test: working with presentations
Answers
A slide show, also known as a visual aid, is a collection of slides or images that are used to support and enhance a presentation.
What is Slide Master?Presentation programs, such as PowerPoint, typically have a feature called a "Slide Master" that allows users to make global changes to the design and layout of all the slides in a presentation.
This could be useful for Harry if he wants to change the background of all his presentation slides.
To hold the audience's attention, Alicia could use elements such as images, videos, animations, and engaging content to make her presentation more interesting and interactive.
Post-test refers to a test or assessment that is given after a lesson or training has been completed. Working with presentations involves creating and organizing the content, designing and formatting the slides, and delivering the presentation to an audience.
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What applications would you pin to your taskbar, why?
Answers
Answer:
The basics: microsoft edge, files, prbly word doc because I`m writing all the time
Other stuff would be spo.tify because i listen to music often and mine.craft
TRUE OR FALSE?
With a bit depth of 3 I can support 8 grayscale variations of black and white images.
Answers
Answer: The correct answer is TRUE
Explanation:
Using binary, a 3-bit value can support 8 variations in grayscale:
1 000
2 001
3 010
4 011
5 100
6 101
7 110
8 111
A regular polygon is an n-sided polygon in which all sides are of the same length and all angles have the same degree(i.e the polygon is both equilateral and equiangular). The formula for computing the area of a re polygon is
n * s2(s squar)
area = -----------------------------------------
4 * tan(pi/n)
write a function that return the area of a regular polygon using the following header.
double area(int n, double side.
write a main function that prompts the user to enter the number of sides and the side of a regular polygon, and display the area.
The program needs to allow the user to run the calculations as needed until the user chooses to end the program.
Answers
Answer:
import java.util.Scanner;
public class Main
{
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
int n;
double side;
char choice;
while(true){
System.out.print("Enter the number of sides: ");
n = input.nextInt();
System.out.print("Enter the side of a regular polygon: ");
side = input.nextDouble();
System.out.println("Area is: " + area(n, side));
System.out.print("Do you want to continue(y/n): ");
choice = input.next().charAt(0);
if(choice == 'n')
break;
}
}
public static double area(int n, double side){
double area = (n * Math.pow(side, 2) / (4 * Math.tan(Math.PI / n)));
return area;
}
}
Explanation:
Create a function named area that takes two parameters, n and side
Calculate the area using the given formula
Return the area
In the main:
Create an indefinite while loop. Inside the loop:
Ask the user to enter the n and side
Call the area() function passing the n and side as parameters and print the result
Ask the user to continue or not. If the user enters "n", stop the loop
Identify four problems endemic to the traditional file environment
Answers
Explanation:
The four problems endemic to the traditional file environment are
Repetition in data: data discrepancy occurs because of duplicate data in the various files.Programs are data-dependent means changes in any programs require data changes also.Security is poor and lack of data availability.lack of compliance and data sharing and also unofficial access is not regulated.Can someone please help me figure this out and let me know what I'm missing. It is on CodeHs and it's 1.3.8 Freely Falling Bodies
Answers
The code is in Java.
It calculates the height and velocity of a dropped pebble using the given formulas.
Comments are used to explain the each line.
//FallingBodies.java
public class FallingBodies
{
public static void main(String[] args) {
//Declare the g as a constant
final double g = 9.8;
//Declare the other variables
double t, height, velocity;
//Set the time
t = 23;
//Calculate the height using the given formula
height = 0.5 * g * t * t;
//Calculate the velocity using the given formula
velocity = g * t;
//Print the height and velocity
System.out.println("The height is " + height + " m");
System.out.println("The velocity is " + velocity + " m/s");
}
}
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Create a program that allows the user to pick and enter a low and a high number. Your program should generate 10 random numbers between the low and high numbers picked by the user. Store these 10 random numbers in a 10 element array and output to the screen.
In java code please.
Answers
Answer:
import java.util.Scanner;
import java.util.Arrays;
import java.util.Random;
public class Main {
public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
System.out.print("Enter low: ");
int low = scan.nextInt();
System.out.print("Enter high: ");
int high = scan.nextInt();
scan.close();
int rndnumbers[] = new int[10];
Random r = new Random();
for(int i=0; i<rndnumbers.length; i++) {
rndnumbers[i] = r.nextInt(high-low+1) + low;
}
for(int i=0; i<rndnumbers.length; i++) {
System.out.printf("%d: %d\n", i, rndnumbers[i]);
}
}
}
What is food technology
Answers
Answer:
is the application of food science to the selection, preservation, processing, packaging, distribution, and use of safe food. Related fields include analytical chemistry, biotechnology, engineering, nutrition, quality control, and food safety management.
Explanation:
In which of the following situations must you stop for a school bus with flashing red lights?
None of the choices are correct.
on a highway that is divided into two separate roadways if you are on the SAME roadway as the school bus
you never have to stop for a school bus as long as you slow down and proceed with caution until you have completely passed it
on a highway that is divided into two separate roadways if you are on the OPPOSITE roadway as the school bus
Answers
The correct answer is:
on a highway that is divided into two separate roadways if you are on the OPPOSITE roadway as the school busWhat happens when a school bus is flashing red lightsWhen a school bus has its flashing red lights activated and the stop sign extended, it is indicating that students are either boarding or exiting the bus. In most jurisdictions, drivers are required to stop when they are on the opposite side of a divided highway from the school bus. This is to ensure the safety of the students crossing the road.
It is crucial to follow the specific laws and regulations of your local jurisdiction regarding school bus safety, as they may vary.
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Write a program that declares an array of size 1,230 and stores the first 1,230 prime numbers in this array. The program then uses the first 1,230 prime numbers to determine if a number between 2 and 100,000,000 is prime. If a number is not prime, then output at least one of its prime factors.
Answers
Answer:
The complete question is :
A positive integer n is called prime if n > 1 and the only factors of n are 1 and n. It is known that the positive integer n>1 is prime if n is not divisible by any prime integer m≤n. The 1230th prime number is 10,007. Let t be an integer such that 2≤t≤100,000,000. Then t is prime if either t is equal to one of the first 1230 prime numbers or t is not divisible by any of the first 1230 prime numbers. Write a program that declares an array of size 1,230 and stores the first 1,230 prime numbers in this array. The program then uses the first 1,230 prime numbers to determine if a number between 2 and 100,000,000 is prime. If a number is not prime, then output at least one of its prime factors.
Explanation:
The program is :
#include<iostream>
#include<cmath>
using namespace std;
const int SIZE = 1230;
bool isPrime(int number);
void first1230PrimeNum(int list[], int length);
void primeTest(int num, int list[], int length);
int main()
{
int primeList[SIZE];
int number;
first1230PrimeNum(primeList, SIZE);
cout<<"Enter an integer between 2 and 100,000,000: ";
cin>>number;
cout<<endl;
primeTest(number, primeList, SIZE);
system("pause");
return 0;
}
bool isPrime(int number)
{
int i; //to iterate
//loop till sqrt(number)
for(i=2; i<=sqrt(number); i++)
{
//if any factor
if(number%i == 0)
return false;//return false
}
return true; //otherwise return true
}
void first1230PrimeNum(int list[], int length)
{
int i=0, number = 2; //i to itrate and number to test prime
while(i<length) //get 1230 primes
{
if(isPrime(number)) //check if prime or not
{
list[i] = number; //add it to list
i++; //increment i
}
number++; //increment number
}
}
void primeTest(int num, int list[], int length)
{
int i; //i to iterate
//loop through list
for(i=0; i<length; i++)
{
//if num is in list then it is prime
if(num == list[i])
{
cout<<num<<" is a prime"<<endl;
return;
}
//if divisible by any number then not a prime
if(num % list[i] == 0)
{
cout<<num<<" is not a prime"<<endl;
cout<<"One of the prime factor: "<<list[i]<<endl;
return;
}
}
cout<<num<<" is a prime"<<endl;
}
OUTPUT :
Enter an integer between 2 and 100,000,000 : 104659
104659 is a prime.
8. Which of the following prompted the creation of video game ratings?
a) Mortal Kombat
b) Super Mario Kart
c) Grain turismo
d) Street Fighter III
Answers
Answer: super Mario kart (who don't love mortal Kombat tho)
Explanation:
what is the origin of cellular phones
Answers
Answer:
The first handheld mobile phone was demonstrated by Martin Cooper of Motorola in New York City in 1973, using a handset weighing c. 2 kilograms (4.4 lbs).[2] In 1979, Nippon Telegraph and Telephone (NTT) launched the world's first cellular network in Japan.
Explanation:
i hope help you :)
mark brainlist
Which term describes the traditional methodology of project management and software development?
Answers
Answer:
Waterfall Methodology
Explanation:
Waterfall Methodology is a process in which events occur in a predictable sequence.
Suppose datagrams are limited to 1500bytes including IP header of 20 bytes. UDP header is 8 bytes. How many datagrams would be required to send an MP3 of 80000 bytes
Answers
Answer:
55
Explanation:
This is your code. >>> a = [5, 10, 15] >>> b = [2, 4, 6] >>> c = [11, 33, 55] >>> d = [a, b, c] d[0][2] is .
Answers
The value of d[2][0] value of your code is 11.
What is coding?Coding, also known as computer programming, is the method by which we communicate with computers.
Code tells a computer what to do, and writing code is similar to writing a set of instructions. You can tell computers what to do or how to behave much more quickly if you learn to write code.
A variable called an is declared, and it contains an array of the numbers 5, 10, and 15.
Variable b is a collection of the numbers 2, 4, and 6.
Variable c is also made up of the numbers 11, 33, and 55.
d[2][0] simply means that we should take the d variable, find the index 2 (which is c), and get the index 0 of c. The result should be 11 because index zero of variable c is 11.
Thus, the answer of d[2][0] is 11.
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Select the answers that best describe showing respect for confidential data. Check all of the boxes that
apply.
A security administrator works for a leading aviation company that supplies military aircraft parts to the
government. Confidentiality is of utmost importance.
The security administrator takes the train to and from work. He often handles sensitive work issues
on his smartphone while commuting.
The security administrator makes sure to shred and properly dispose of any printed confidential
information.
The security administrator talks about his current classified projects with a friend at a restaurant.
The security administrator uses password-protected files and folders on his work computer.
Answers
Answer:
“The security administrator make sure to shred and properly dispose of any printed confidential information” and “The security administrator uses password-protected files and folders on his work computer”
Explanation:
Following are the correct options that gives the best description in the context of showing respect for confidential data:
The security administrator makes sure to shred and properly dispose of any printed confidential information.
The security administrator uses password-protected files and folders on his work computer.
Hence, Options C and E are correct.
What is confidential data?There are basically two types of data: one is available for everyone so that they can access all the data information, whatever they want to get in and edit it.
On the other hand, there is a kind of data that is available only to a few or an individual person, and when it is about to edit data, most of the time that data is not available to edit. The protection that has been provided to conference tension data is the sponge please of the security administrator.
Therefore, Options C and E are correct.
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How many combinations of 1s and Os can we make with 6 place values?
Answers
Explanation:
which question is this
..............................................................................
Answers
Answer:
Hi how can I help you?.
Explanation:
I see no question.
PLEASE RESPOND IN CORAL LANGUAGE
A "jiffy" is the scientific name for 1/100th of a second. Define a function named SecondsToJiffies that takes a float as a parameter, representing the number of seconds, and returns a float that represents the number of "jiffies". Then, write a main program that reads the number of seconds as an input, calls function SecondsToJiffies() with the input as argument, and outputs the number of "jiffies".
Ex: If the input of the program is:
15
the function returns and the program outputs:
1500.0
Your program should define and call a function:
Function SecondsToJiffies(float userSeconds) returns float userJiffies
Answers
A flottant representing the number of seconds entered is passed to the function Seconds To Jiffies, which returns a flottant representing the number of "jiffies". She divides the total number of seconds by 1/100.
What purpose do jiffies serve in Linux?The total number of ticks since the system booted is stored in the global variable "jiffies". The variable is initialised at zero by the kernel at boot time, and each time a timer interrupt occurs, it is increased by one.
fonction SecondsToJiffies(secondes: flottant) -> flottant:
jiffy = 1 / 100
jiffies = secondes / jiffy
retourner jiffies
début
secondes = flottant(input())
jiffies = SecondsToJiffies(secondes)
print(jiffies)
fin
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what is the hierarchical system used by windows?
Answers
Answer: Files are placed in a hierarchical structure. The file system specifies naming conventions for files and the format for specifying the path to a file in the tree structure. Each file system consists of one or more drivers and dynamic-link libraries that define the data formats and features of the file system.
Explanation:
¯\_(ツ)_/¯
Which technology do online storesusually use to present customized content?
Online stores usually
use _____ technology to present customized content.
Answers
Answer:
real time analytics technology
Explanation:
Online stores usually use real-time analytics technology to present customized content. Explanation: Real-time analytics is gaining popularity nowadays. It is basically the procedure of measuring and preparing the data as it enters the database
help
Which applications are considered to be word processing software?
A) Docs and Acrobat
B) Excel and Sheets
C) Access and OpenOffice Base
D) Keynote and Prezi
Answers
Joseline is trying out a new piece of photography equipment that she recently purchased that helps to steady a camera with one single leg instead of three. What type of equipment is Joseline trying out?
A. multi-pod
B. tripod
C. semi-pod
D. monopod
Answers
Joseline trying out tripod .A camera-supporting three-legged stand is known as a tripod. For stability, cameras are fixed on tripods, sometimes known as "sticks." In tripods, the fluid head is used. The camera may now tilt up and down in addition to pan left and right.
What tools are employed in photography?You will need a camera with manual settings and the ability to change lenses, a tripod, a camera case, and a good SD card if you're a newbie photographer who wants to control the visual impacts of photography. The affordable photography gear listed below will help you get started in 2021.A monopod, which is a one-legged camera support system for precise and stable shooting, is also known as a unipod.A camera-supporting three-legged stand is known as a tripod. For stability, cameras are fixed on tripods, sometimes known as "sticks." In tripods, the fluid head is used. The camera may now tilt up and down in addition to pan left and right.To learn more about tripod refer to:
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Answer:
monopod
Explanation:
Why does trust usually break down in a designer-client relationship?
A lack of service
B lack of privacy
C lack of communication
D lack of contract
Answers
Trust is usually broken down in a designer-client relationship due to a lack of service. Thus, the correct option for this question is A.
How do you end a client relationship?You would end a client relationship by staying calm, rational, and polite. Apart from this, reasons for terminating the relationship, but keep emotion and name-calling out of the conversation.
Follow-up with a phone call. You can start the process with an email, but you should follow up with a phone call in order to talk your client through the process and answer any questions.
But on contrary, one can build trust with clients by giving respect to them, Admit Mistakes and Correct Ethically, listening to them, listening to their words first followed by a systematic response, etc.
Therefore, trust is usually broken down in a designer-client relationship due to a lack of service. Thus, the correct option for this question is A.
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9.19 LAB: Words in a range (lists) Write a program that first reads in the name of an input file, followed by two strings representing the lower and upper bounds of a search range. The file should be read using the file.readlines() method. The input file contains a list of alphabetical, ten-letter strings, each on a separate line. Your program should output all strings from the list that are within that range (inclusive of the bounds). Ex: If the input is:
Answers
Answer:
9.2. Métodos del Objeto File (Python para principiantes)
Explanation:
Which of the following are document views available in Word 2019? Check all that apply.
- Print Layout
- Outline
Edit Mode
- Web Layout
Master Layout
- Draft
- Read Mode
Answers
Document views available in Word 2019:
Print LayoutOutlineWeb LayoutDraftRead ModeWhat is the purpose of a word document?Word for Windows is a standalone program or a component of the Microsoft Office package. The most popular word processing tool on the market, Word has some basic desktop publishing features. Since practically any computer user can read a Word document using the Word program, a Word viewer, or a word processor that imports the Word format, Word files are frequently used as the format for transmitting text documents over email. When text is selected, a toolbar with formatting choices also shows on the newly designed interface.
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Write the following functions. Each function needs function comments that describes function and its parameters double sphereVolume( double radius) double sphereSuface( double radius) double cylinderVolume( double radius, double height) double coneSurface( double radius, double height) double coneVolume( double radius, double height) That computes the volume and surface of the sphere with radius, a cylinder with a circular base with radius radius , and height height , and a cone with a circular base with radius radius , and height height . Then write a test program to prompt user to enter values of radius and height, call six functions and display the results c++
Answers
Answer:
Output
height: 10
radius: 2
Cylinder volume: 125.6
Cone Surface: 76.6037
Cone Volume: 41.8667
Sphere volume: 33.4933
Sphere surface: 50.24
Cylinder volume: 125.6
Explanation:
//Declaring variables
#include <iostream>
#include <cmath>
using namespace std;
//Defining Pi value
const double PI=3.14;
//Decliring the functions
//volume function for cone
double volumeCone(double r,double h){
return PI * r * r * (h/3);
}
//volume function for sphere surface
double surfaceSphere(double r){
return 4 * PI * r * r;
}
//volume function for cylinderVol
double cylinderVol(double r,double h){
return PI * r * r * h;
}
//volume function for sphere volume
double sphereVol(double r){
return 4/3.0 * PI * r * r * r;
}
//volume function for cone surface
double surfaceCone(double r,double h){
return PI * r * (r+sqrt(h *h + r * r));
}
int main(){
double r,h;
//print the values of height and radius
cout<<"height: ";
cin>>h;
cout<<"radius: ";
cin>>r;
//print the values of geometric forms
cout<<"Cylinder volume: "<<cylinderVol(r,h)<<endl;
cout<<"Cone Surface: "<<surfaceCone(r,h)<<endl;
cout<<"Cone Volume: "<<volumeCone(r,h)<<endl;
cout<<"Sphere volume: "<<sphereVol(r)<<endl;
cout<<"Sphere surface: "<<surfaceSphere(r)<<endl;
cout<<"Cylinder volume: "<<cylinderVol(r,h)<<endl;
}
You modified the GreenvilleRevenue program to include a number of methods. Now modify every data entry statement to use a TryParse() method to ensure that each piece of data is the correct type. Any invalid user entries should generate an appropriate message, and the user should be required to reenter the data.
using System;
using static System.Console;
class GreenvilleRevenue
{
static void Main(string[] args)
{
const int fee = 25;
int lastYearsContestants;
int thisYearsContestants;
const int LOW = 0;
const int HIGH = 30;
int other = 0;
int dancer = 0;
int musician = 0;
int singer = 0;
WriteLine("**********************************");
WriteLine("* The stars shine in Greenville. *");
WriteLine("**********************************");
WriteLine("");
lastYearsContestants = getContestantsNum(message, LOW, HIGH);
string[] contestant = new string[thisYearsContestants];
string[] talent = new string[thisYearsContestants];
getContestantsInfo(contestant, talent);
for (int x = 0; x < talent.Length; ++x)
{
if (talent[x] == "O")
{
++other;
}
else if (talent[x] == "S")
{
++singer;
}
else if (talent[x] == "D")
{
++dancer;
}
else if (talent[x] == "M")
{
++musician;
}
}
Clear();
WriteLine("Currently signed up, there are..");
WriteLine("{0} dancers", dancer);
WriteLine("{0} singers", singer);
WriteLine("{0} musicians", musician);
WriteLine("{0} everything else!", other);
contestantByTalent(contestant, talent);
Clear();
contestantInfo(thisYearsContestants, lastYearsContestants, fee);
}
static int getContestantsNum(string message, int LOW, int HIGH)
{
WriteLine("Please enter the number of contestants for last year.>>");
string input = ReadLine();
int contestantsNum = Convert.ToInt32(input);
while (contestantsNum < LOW || contestantsNum > HIGH)
{
WriteLine("Valid numbers are 0 through 30, Please try again.>>");
contestantsNum = Convert.ToInt32(ReadLine());
}
return contestantsNum;
WriteLine("Please enter the number of contestants for this year.>>");
string input = ReadLine();
int contestantsNum = Convert.ToInt32(input);
while (contestantsNum < LOW || contestantsNum > HIGH)
{
WriteLine("Valid numbers are 0 through 30, Please try again.>>");
contestantsNum = Convert.ToInt32(ReadLine());
}
return contestantsNum;
}
static string getTalent(int contestantsNum)
{
bool correct = false;
string talentType = "";
while (!correct)
{
WriteLine("What is contestant " + contestantsNum + "'s skill? Please enter 'S' for Singer, 'D' for Dancer, 'M' for " +
"Musician, 'O' for Other.>>");
talentType = ReadLine().ToUpper();
if (talentType == "S" || talentType == "D" || talentType == "M" || talentType == "O")
{
correct = true;
}
else
{
WriteLine("Please enter a valid response.>>");
}
}
return talentType;
}
static void contestantByTalent(string[] contestant, string[] talent)
{
WriteLine ("To see a list of all contestants with a specific talent, Please enter a talent code.talent codes are(S)inger, (D)ancer, (M)usician, (O)ther; altenatively, you may type (E) to exit.>>");
string entry = ReadLine().ToUpper();
while (entry != "E")
{
if (entry != "S" && entry != "D" && entry != "M" && entry != "O")
{
WriteLine("That wasn't a valid talent code. Valid talent codes are (S)inger, (D)ancer, (M)usician, (O)ther; altenatively, you may type (E) to exit.>>");
entry = ReadLine().ToUpper();
if (entry == "E")
break;
}
for (int x = 0; x < talent.Length; ++x)
{
if (entry == talent[x])
WriteLine("Contestant " + contestant[x] + " talent " + talent[x]);
}
WriteLine("To see a list of all contestants with a specific talent, Please enter a talent code. talent codes are (S)inger, (D)ancer, (M)usician, (O)ther; altenatively, you may type (E) to exit.>>");
entry = ReadLine().ToUpper();
}
}
static void getContestantsInfo(string[] contestant, string[] talent)
{
for (int x = 0; x < contestant.Length; ++x)
{
WriteLine("What is the name for Contestant " + (x + 1) + "?");
contestant[x] = ReadLine();
talent[x] = getTalent(x + 1);
}
}
static void contestantInfo (int thisYearsContestants, int lastYearsContestants, int fee)
{
if (thisYearsContestants > lastYearsContestants * 2)
{
WriteLine("The competition is more than twice as big this year!");
WriteLine("The expected revenue for this year's competition is {0:C}", (thisYearsContestants * fee));
}
else
if (thisYearsContestants > lastYearsContestants && thisYearsContestants <= (lastYearsContestants * 2))
{
WriteLine("The competition is bigger than ever!");
WriteLine("The expected revenue for this year's competition is {0:C}", (thisYearsContestants * fee));
}
else
if (thisYearsContestants < lastYearsContestants)
{
WriteLine("A tighter race this year! Come out and cast your vote!");
WriteLine("The expected revenue for this year's competition is {0:C}.", (thisYearsContestants * fee));
}
}
}
Answers
A petrol engine takes 1000J of chemical energy and produces 250J of useful energy
Answers
A petrol engine takes 1000J of chemical energy and produces 250J of useful energy the efficiency is 25%.
What is chemical energy?Chemical energy is defined as a chemical substances' potential energy, which is released as they experience chemical reactions and change into other substances.
As the petrol engine takes 1000J of chemical energy and produces 250J of useful energy.
So, Input = 1000 J
Output = 250 J
Efficiency = (250 / 1000) 100
= 0.25 x 100
= 25 %
Thus, a petrol engine takes 1000J of chemical energy and produces 250J of useful energy the efficiency is 25%.
To learn more about chemical energy, refer to the link below:
https://brainly.com/question/1371184
#SPJ1
Your question is incomplete, but probably your complete question was
A petrol engine takes 1000J of chemical energy and produces 250J of useful energy, calculate the efficiency?