Answer:
To find the MA of a lever, divide the output force by the input force, or divide the length of the resistance arm by the length of the effort arm. In a first-class lever the fulcrum is located at some point between the effort and resistance forces.
Explanation:
What is Memory Card? Explain?
A memory card is basically a card that holds memory. The card can be removed at anytime and put into any other device. It is mainly used for extra storage and to transport videos, pictures, etc. to other devices
Hope this helps. : )
y'+2y = 5-e^(-4x), y(0)=-11
Use Euler's Method with a step size of h = 0.1 to find approximate values of the solution as x= 0.1, 0.2, 0.3, 0.4, and 0.5. Compare them to the exact values of the solution at these points.
Answer:
see attached
Explanation:
A differential equation solver says the exact solution is ...
y = 5/2 -14e^(-2x) +1/2e^(-4x)
The y-values computed by Euler's method will be ...
y = ∆x·y' = 0.1(5 - e^(-4x) -2y)
The attached table performs these computations and compares the result. The "difference" is the approximate value minus the exact value. (When the step size is decreased by a factor of 10, the difference over the same interval is decreased by about that same factor.)
write a technical term for following statements
1.The method applied to increase the life of computer and its assets.
2.The power regulating device this supplies constant power to the computer from its backup system.
3.The software used to scan, locate and detect the disk for viruses.
Answer:
1. Hardware Maintenance
2. Uninterrupted Power Supply (UPS)
3. Antivirus software
Explanation:
Antivirus software, or Anti-virus software (also known as AV software), otherwise called anti malware, is a PC program used to forestall, distinguish, and eliminate malware.
Antivirus software was initially evolved to identify and eliminate PC infections, thus the name. Be that as it may, with the expansion of different sorts of malware, antivirus software began to give security from other PC dangers. Specifically, current antivirus software can shield clients from: noxious program criminals.
A few items additionally incorporate security from other PC dangers, for example, tainted and noxious URLs, spam, trick and phishing assaults, online identity (privacy), web based financial assaults, social engineering techniques, advanced persistent threat (APT).
Which of the following is true about binary search. A. It uses binary numbers in its algorithm B. It is slower than sequential search C. It can be implemented using a recursive algorithm D. It does works for both sorted and unsorted arrays. E. None of the above.
Answer:
A. It uses binary numbers in its algorithm
Explanation:
A Binary search is a type of algorithm designed to look through only a sorted array of data for a particular item.
It is more efficient (faster) than sequential search since the algorithm doesn't have to look up the entire array of data, but simply repeatedly divide in half the section of the array that could contain the searched item.
The cost of a postsecondary education increases with the length of time involved in the program.
True
False
False it stays the same hope this helps :)
You have been asked to write a program that involves animals. Some animals are herbivores. Within this program, any animal that is not a herbivore is a carnivore. Which set of class definitions is most appropriate for this program
Incomplete question. The options:
class Animal :
class Herbivore(Animal):
class Carnivore(Herbivore) :
class Animal (Herbivore, Carnivore) :
class Herbivore :
class Carnivore
class Animal
class Herbivore (Animal) :
class Carnivore (Animal) :
class Animal:
class Carnivore (Animal) :
class Herbivore (Carnivore) :
Answer:
class Animal
class Herbivore (Animal) :
class Carnivore (Animal) :
Add a clause for identifying the sibling relationship. The predicate on the left handside of the rule should be sibling(X, Y), such that sibling(alice, edward) should be true, and X, Y do not need to be different.
Answer:
following are the solution to this question:
Explanation:
For Siblings (X,Y);
Alice(X),
Edward(Y),
parent(Edward,Victoria,Albert) //Albert is the father F
parent(Alice,Victoria,Albert) //Victoria is the Mother M
Therefore,
X is siblings of Y when;
X is the mother M and father is F, and Y is the same mother and father as X does, and satisfing the given condition.
It can be written as the following prolog rule:
Siblings_of(X,Y):
parents(X,M,F)
parents(Y,M,F)
Siblings_of(X,Y): parents(X,M,F), parents(Y,M,F)
|? - sibling_of(alice,edward).
yes
|? - Sibling_of(alice,X).
X=Edward
|? - Sibling_of(alice,alice).
yes
After reading through the code, what will happen when you click run?
Answer:
B.) Laurel will try to collect treasure when there is not any and it causes an error
Explanation:
Laurel is at the top right corner of the map. When you click run, laurel moves 1 step ahead. This spot is right above the coordinate of the very first diamond. There is no treasure at this spot.
Therefore, when the next command calls for collecting, there will be an error, as there is no treasure at the spot right above the first diamond.
Write a program that declares a two-dimensional array named myFancyArray of the type double. Initialize the array to the following values: 23 14.12 17 85.99 6.06 13 1100 0 36.36 90.09 3.145 5.4 1. Create a function that will return the sum of all elements in the array. Call this function from main and print out the result. 2. Create a function that will use a nested loop to display all the elements in the array to the screen. Call this function from main.
Answer:
This solution is provided in C++
#include <iostream>
using namespace std;
double sumFancyArray(double myarr[][6]){
double sum = 0.0;
for(int i = 0;i<2;i++) {
for(int j = 0;j<6;j++){
sum+=myarr[i][j];
}}
return sum;
}
void printFancyArray(double myarr[][6]){
for(int i = 0;i<2;i++) {
for(int j = 0;j<6;j++){
cout<<myarr[i][j]<<" ";
}
}
}
int main(){
double myFancyArray[2][6] = {23, 14.12, 17,85.99, 6.06, 13, 1100, 0, 36.36, 90.09, 3.145, 5.4};
cout<<sumFancyArray(myFancyArray)<<endl;
printFancyArray(myFancyArray);
return 0;
}
Explanation:
This function returns the sum of the array elements
double sumFancyArray(double myarr[][6]){
This initializes sum to 0
double sum = 0.0;
This iterates through the row of the array
for(int i = 0;i<2;i++) {
This iterates through the column
for(int j = 0;j<6;j++){
This adds each element
sum+=myarr[i][j];
}}
This returns the sum
return sum;
}
This method prints array elements
void printFancyArray(double myarr[][6]){
This iterates through the row of the array
for(int i = 0;i<2;i++) {
This iterates through the column
for(int j = 0;j<6;j++){
This prints each array element
cout<<myarr[i][j]<<" ";
}
}
}
The main starts here
int main(){
This declares and initializes the array
double myFancyArray[2][6] = {23, 14.12, 17,85.99, 6.06, 13, 1100, 0, 36.36, 90.09, 3.145, 5.4};
This calls the function that returns the sum
cout<<sumFancyArray(myFancyArray)<<endl;
This calls the function that prints the array elements
printFancyArray(myFancyArray);
return 0;
}
Write a C++ program that tests whether the array has four consecutive numbers with the same values. bool isConsecutive(int values[], int size) In the main() program you should prompt the user to enter a series of integers and display if the series contains four consecutive numbers with the same value. Your program should first prompt the user for the number of integers in the list or number of values in the series. Assume the maximum array size is 20. No global variables may be used Use a function prototype for said function The function can not do any cin or cout The main() function will do all the cin and cout You may assume the list contains positive integers only Sample runs (bolded text is output) : Enter the number of values: 6 Enter a value: 3 Enter a value: 4 Enter a value: 5 Enter a value: 5 Enter a value: 5 Enter a value: 5 The list has consecutive four numbers! Enter the number of values: 9 Enter a value: 3 Enter a value: 4 Enter a value: 5 Enter a value: 50 Enter a value: 5 Enter a value: 6 Enter a value: 5 Enter a value: 5 Enter a value: 6 The list has no consecutive fours numbers!
Answer:
#include <iostream>
using namespace std;
bool isConsecutive(int values[], int size){
bool r = false;
int count=0;
for(int i=0;i<size;i++){
if(values[i]==values[i+1]){
count++;
if(count==3)
r=true;
}
else{
count=0;
}
}
return r;
}
int main() {
// Write C++ code here
int size;
cout<<"enter the number of integer in list"<<endl;
cin>>size;
int arr[size];
for(int i=0;i<size;i++){
cout<<"enter the value of number"<<endl;
cin>>arr[i];
}
bool result= isConsecutive(arr,size);
if(result){
cout<<"The list has consecutive fours numbers!"<<endl;
}
else{
cout<<"The list has no consecutive fours numbers!"<<endl;
}
return 0;
}
Explanation:
Above program is written in C++ language.
All bold-faced words and letters are C++ keywords.
(20 points). Some matrixes have very special patterns, for example, in the following matrix, the numbers in the first row are equal to the number of their respective column; the numbers in the first column are equal to the square of the number of their respective row; when the row number equals to the column number, the elements are equal to 1; the rest elements are the sum of the element just above them and the one to their left. Write a user-defined function program in the program, you need to use while loops), and then use the function you write to create the following matrix (show the command you use). 1 4 9 16 2 1 10 26 3 4 1 27 4 5 8 13 9 22 1 23
Answer:
#include <iostream>
using namespace std;
void matrix(){
int row = 5, col = 6;
int myarr[row][col];
for (int i = 0; i < 5; i++){
for (int x = 0; x < 6; x++){
if (i == 0){
myarr[i][x] = (x+1)*(x+1);
}else if ( x == 0){
myarr[i][x] = (i+1)*(i+1)*(i+1);
} else if ( i == x){
myarr[i][x] = (i+1);
} else{
myarr[i][x] = myarr[i-1][x] + myarr[i][x-1];
}
}
}
for (int i = 0; i < 5; i++){
for (int x = 0; x < 6; x++){
cout<< myarr[i][x] << " ";
}
cout<< "\n";
}
}
int main(){
matrix();
}
Explanation:
The C++ source code defines a two-dimensional array that has a fixed row and column length. The array is a local variable of the function "matrix" and the void function is called in the main program to output the items of the array.
what command in cisco IOS allows the user to see the routing table
Answer:
Show IP route command
Explanation:
Rosa is building a website for a multimedia company. She wants to add a drop-down menu functionality to the website's main page. Which
markup language or technology will allow Rosa to add this element?
OA. HTML
OB. Semantic HTML
OC. DHTML
OD. XML
Answer:
The correct answer is C. DHTML.
Explanation:
I got it right on the Edmentum test.
What are differences between manual formatting and formatting in word
processor?
What will be result of below if statement.
if (Grade >= 90)
puts("A");
What’s the answer?
Explanation:
pls check it ur answer hp u understand this
A browser is an example of a. :
general-purpose application
specialized
program
system application
utility program
Consider the following declaration: (1, 2) double currentBalance[91]; In this declaration, identify the following: a. The array name b. The array size Copyright 2018 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. WCN 02-200-203 8 Exercises | 593 c. The data type of each array component d. The range of values for the index of the array e. What are the indices of the first, middle, and the last elements
Answer:
Following are the solution to the given choices:
Explanation:
Given:
double currentBalance[91];//defining a double array
In point a:
The name of the array is= currentBalance.
In point b:
91 double values could be saved in the array. It requires 8bytes to hold a double that if the array size is 91*8 = 728
In point c:
Each element's data type is double.
In point d:
The array index range of values is between 0 and 90 (every array index starts from 0 and ends in N-1, here N=91).
In point e:
To access first element use currentBalance[0], for middle currentBalance[91/2] , for last currentBalance[90]
Write two public static methods in the U6_L4_Activity_Two class. The first should have the signature swap(int[] arr, int i, int j) and return type void. This method should swap the values at the indices i and j of the array arr (precondition: i and j are both valid indices for arr). The second method should have the signature allSwap(int[] arr) and return type void. The precondition for this method is that arr has an even length. The method should swap the values of all adjacent pairs of elements in the array, so that for example the array {3, 5, 2, 1, 8, 10} becomes {5, 3, 1, 2, 10, 8} after this method is called.
Answer:
public static void swap(int[] arr, int i, int j) {
if(i >=0 && i <=arr.length-1 && j >=0 && j<=arr.length-1){
int hold = arr[i];
arr[i] = arr[j];
arr[j] = hold;
}
}
public static void allSwap(int[] arr) {
if (arr.length % 2 == 0){
for(int i=0; i<arr.length; i+=2){
int hold = arr[i+1];
arr[i+1] = arr[i];
arr[i] = hold;
}
} else{
System.out.println("array length is not even.");
}
}
Explanation:
The two functions, swap and allSwap are defined methods in a class. The latter swaps the item values at the specified index in an array while the second accepts an array of even length and swap the adjacent values.
Suppose that we want to enhance the processor used for Web serving. The new processor is 10 times faster on computation in the Web serving application than the original processor. Assuming that the original processor is busy with computation 40% of the time and is waiting for I/O 60% of the time, what is the overall speedup gained by incorporating the enhancement
Answer:
The overall speedup gained by incorporating the enhancement is 1.563
Explanation:
Using Amdahl's Law;
The overall speedup [tex](N) =\dfrac{1}{(1-P) + ( \dfrac{P}{n})}[/tex]
where;
P = Fraction Enhanced for Old Processor
n = speedup enhancement as a result of the new processor
P = 40% = 0.40 and n = 10
∴
The overall speedup (N) is:
[tex]=\dfrac{1}{(1-0.4) + ( \dfrac{0.4}{10})}[/tex]
[tex]=\dfrac{1}{(0.6) + ( 0.04)}[/tex]
[tex]=\dfrac{1}{0.64}[/tex]
= 1.563
Thus, the overall speedup gained by incorporating the enhancement is 1.563
Requests to retrieve data written in a language such as SQL are called…
A. Data
B.queries
What reforms were made by the British government in India after the war of independence? write any three
PLEASE I NEED HELP AS FAST AS YOU CAN
Answer:
1. Indian Council Act
2. Morely-Minto Reforms
3. Rowlatt Act
Explanation:
Following the unsuccessful war of independence in Indian often referred to as the Indian Rebellion of 1857. There were various reforms established by the British government before the actual independence of India in 1947. Some of the reforms include:
1. Indian Council Act: this was established in 1861 under the regime of Lord Canning. The purpose is to contemplate an association of Indians with the administration at a higher level.
2. Morely-Minto Reforms: this was established in 1909 under the reign of Lord Minto II. The purpose is to Separate electorates to widen the gulf between Hindús and Muslims.
3. Rowlatt Act: this was established in 1919 under the administration of L. Chelmsford. These reforms favor the extraordinary powers given to suppress the freedom struggle with General Dyer as the Commandant.
what command in cisco IOS allows the user to see the routing table
Answer:
show ip route [[ipAddress [mask]] [bgp | connected | mpls [ipAddress] [ipAddress/PrefLen] [ipAddress mask] [detail] | isis | ospf | static | summary | multicast |unicast]
Explanation:
the show ip route command will show the entire ip route table. If you put in no arguments it will display them all.
Write a program that gets a list of integers from a user. First, the user should be asked to enter the number of integers to be stored in a list. Then your program should ask for these integers and store them in the list. Finally, the program should ask the user to enter a sentinel value that will be used to search through the integers in the list which are greater than the sentinel value. For example: If the input is: 7 50 60 140 200 75 100 172 70 the output is: 140 200 75 100 172 The 7 indicates that there are seven integers in the list, namely 50 60 140 200 75 100 172. The 70 indicates that the program should output all integers greater than 70, so the program outputs 140 200 75 100 172. You should use methods in addition to the main method. getListValues to get and store the values from the user printListValuesGreaterThanSentinal to print the values found to be greater than the sentinel value.
Answer:
#include <iostream>
using namespace std;
void insert(int *arr, int num);
int n;
void returnGT(int arr[]);
int main(){
cout<< "Enter the number of integers: "<<endl;
cin>>n;
int num[n];
insert(num, n);
returnGT(num);
}
void insert(int *arr, int num){
for (int i = 0; i < num; i++){
cout<< "Enter item "<< i + 1 << " : ";
cin>> arr[i];
}
}
void returnGT(int arr[]){
int sentinel;
cout<< "Enter sentinel: ";
cin>> sentinel;
for (int i = 0; i < n; i++){
if (arr[i] > sentinel){
cout<< arr[i] << " ";
}
}
}
Explanation:
The C++ source code defines an array of integer values, the program prompts for user input for the array size and the sentinel value to fill the array with input values and output integer values greater than the sentinel.
Write a java program to read an array of positive numbers. The program should find the difference between the alternate numbers in the array and find the index position of the smallest element with largest difference. If more than one pair has the same largest difference consider the first occurrence.
Answer:
int s;
int[] num= new int[s];
Scanner sc = new Scanner(System.in);
System.out.printIn("Enter array size");
size = sc.nextInt();
for (i = 0; i < s; i++){
num[i] = sc.nextInt();
}
int[] difference;
int count = 0;
for (i = 0; i < num.length(); i= i + 2){
if (num[i] > num[i+1]){
difference[count] = num[i] -num[i+1];
}else{
difference = num[i+1] - num[i];
}
}
int max = 0;
for (int i : difference) {
if ( i > max){
max = i;
}
}
int result = Arrays.stream(difference).boxed().collect(Collectors.toList().indexOf(max);
System.out.printIn(result);
Explanation:
The Java source code uses procedural method to execute a task. The program prompts for user inputs for the array size and the items in the array. Assuming the array has an even length, the adjacent items of the array are subtracted and stored in another array called difference. The index of the maximum value of the difference array is printed on screen.
Calculate the heat energy required to raise the temperature of 5 kg of water from 20℃ to
40℃. Specific heat capacity of water is 4200 J kg-1 k-1
Given that,
Mass of water, m = 5 kg
The temperature increases from 20℃ to 40℃.
Specific heat capacity of water is 4200 J kg⁻¹ k⁻¹
To find,
Heat energy required to raise the temperature.
Solution,
The formula for the heat energy required to raise the temperature is given by :
[tex]Q=mc\Delta T\\\\=5\times 4200\times (40-20)\\\\=420000\ J\\\\=420\ kJ[/tex]
So, the heat energy required is 420 kJ.
write instruction to recharge mobile phone
These are some instructions to recharge a mobile phone:
You need to have a phone charger.Connect your phone charger to your phone.Then connect it to the electricity.Wait for the mobile phone to charge fully.Disconnect your phone from the phone charger and the electricity.How do you give instructions?In this exercise, you have to give instructions to charge a mobile phone.
When you have to give instructions it is helpful to explain every action using a specific order so it is easier for the other person to understand the instructions.
Check more information about mobile phones here https://brainly.com/question/9447658
what is output? x=-2 y=-3 print (x*y+2)
Answer:
=8
Aaaaaaaaaansjxjdjsaaaaaaa
Explanation:
-2*-3=6+2=8
Use the drop-down menus to select the software term being described. The is what the user interacts with when operating a computer. The is the most important computer software. The is the software located within the hardware.
Answer:
1.) A. application software
2.) C. operating system
3.) B. basic input/output system
Answer:
All of his are correct :)
Explanation:
What is the purpose of a report?
A. To organize data into a table
B. To display data returned from a query in a specially formatted way
C. To design a custom form to create a new table
D. To search for specific information in a table
Answer:
B. To display data returned from a query in a specially formatted way
The part of the operating system that
manages (part of the memory
hierarchy is called the
a.)memory disk
b.)memory space
c.)memory manager
d.)address table
Answer:
C.
Explanation:
Memory Management can be defined as a management process in computer science which helps in managing and controlling computer memory. This process also allocates blocks to several programs running in order to improve overall system. Memory management is located in hardware, OS, and applications.
This program also assits OS by providing additional assisstance such as it helps to remove unused data of memory, etc. Some examples of memory manager are cacheman, WinRam, etc.
Therefore, option C is correct.