which of the following is a chemical change.

A: Separating water into different glasses
B: breaking frozen ice cubes with a hammer
c: running an electric current through water
d: boiling water to evaporate it on a stove.

Answer:c

Explanation:

kelly wants to buy a new operating system for a laptop. under which category will it be in online store?

_____ is a framework based on JavaScript and HTML that is normally used to make dynamic web apps.

a
Python
b
CSS
c
AngularJS
d
A database

Compare a Wi-Fi hotspot with a cybercafé.

100 POINTS!!!
Suppose a program requires a password that is a combination of numbers and letters but is not key sensitive. However, the user input is received as a string with letters that can have arbitrary cases. What code can be used to validate user input, u_pass, against the actual password, a_pass?

u_pass.upper() == str(a_pass).upper()
u_pass == a_pass
u_pass == str(a_pass)
u_pass is a_pass

Planned value:

How is it calculated?

Lazarus Consulting is a large computer consulting company in New York. Pete Lazarus, theà CEOà and founder, is well known for his philanthropic efforts. Pete knows that most of his employees contribute to nonprofit organizations and wants to reward them for their efforts while encouraging others to contribute to charities. Pete began a program that matches 50 percent of each employee donation. The only stipulations are that the charity must be a nonprofit organization and the company will match only up to $2,000 per year per employee.
Use the à data fileà provided to determine the following:
What was the total donation amount per organization?
What were the average donations per organization?

Choose the words that make the statement true. You wrote a program called firstProgram.

Your program is _____.

O always running in the background

O stored until you open the file

What is this tool called?
*

What if rulers appear on my screen?

Suppose a linked list of 20 nodes. The middle node has a data –250. Write the pseudocode to replace the middle node of the linked list with a new node and new data. Assume that the list's head pointer is called head_ptr and the data for the new node is called entry.

Helppp!!! Will give brainliest! Which of these operating system use the organize file?

Hypervisor

Firmware or wetware

Folders or directories

Output devices

In a singing competition, there are 34 more men than women
Find the number of women participants if the total number of
participants is 128.

1) An employer has decided to award a weekly pay raise to all employees by taking the square root of the difference between his weight and the employee’s weight. For instance, an employee who weighs 16 pounds less than the employer will get a $4 per week raise. The raise should be in whole dollars (an int). Write a class file that prompts the user for the employee and the employer weight. Please output the correct raise amount making sure that all inputs are included in the output statement.

This Operating System was basically an upgrade to Windows 98 and was designed for home users. 1) Windows ME 2) Windows 2K 3) Windows 2000 4) Windows New Technology

Difference between entropy and enthalpy is

Write a program that calculates and displays the amount ofmoney available in a bank account that initially has $8000 deposited in it and that earns interest atthe rate of 2.5 percent a year. Your program should display the amount available at the end of eachyear for a period of 10 years. Use the relationship that the money available at the end of each yearequals the amount of money in the account at the start of the year plus 0.025 times the amountavailable at the start of the year [20 points].

how to write email abut new home your friend ​

How can you crop a photo in PowerPoint?

What does the measurement tell you?

Planned value

Can I publish my book on Google?

Create a Python file named num_sum.py that contains: The definition of two functions: volume - accepts three parameters and returns the product of them, but displays nothing sum_of_nums - accepts 1 or more numbers and returns their sum, but displays nothing A print function call that includes a call to volume, passing 2, 3, and 4 A print function call that includes a call to sum_of_nums, passing 1, 2, 3, 4, and 5 Submit the Python program and screenshot. Following is an example showing how your screenshot might look:

which of the following best describes compounds.
A. They can only be separated chemically
b. they are always liquid at room temperature
c. they contain the atoms of just one element
d. they have the same properties as their elements

Which of the following is a sign you may be drowsy behind the wheel?
A. Jitteriness
B. Happiness
C. Unhappiness
D. Irritability

Which of the following occupations is least likely to involve use of a computing device on a day-to-day basis?

Janitorial duties
Cashier in a bank
Journalist
Records clerk in a hospital

Hands-On Project 15-4 Make Network Cables
Using the tools and skills you learned about in this chapter, practice making a straight-through cable and a crossover cable. Use a cable tester to test both cables. Answer the following questions:
1. Which wiring standard did you use for the straight-through cable? List the pinouts (pin number and wire color) for each of the eight pins on each connector.
2. Will your crossover cable work on a Gigabit Ethernet network? List the pinouts (pin number and wire color) for each of the eight pins on each connector.

give the imporntance of having standard funiture in the laboratory​

what is input devices​

Class description: A MyString class should behave much like the c++ string class. The class should use a dynamically allocated char array to hold a character string. If the amount of memory allocated to the array is too small to complete some necessary task (e.g., assigning a new character string to the object) the object should automatically double its capacity until it is large enough to complete the task. If it's discovered that the object is using less than 25% of its capacity the object should shrink to half its capacity until it is using more that 25% of its capacity.
Assignment: Implement the MyString class using a header and implementation file named MyString.h and MyString.cpp respectively. Even though MyString.h will be provided on the upload site, create own version for testing code locally. Make sure to properly test code on by creating a test driver that fully tests every function created in the MyString class
Memory Requirements: MyString should start with 10 bytes of allocated memory and should grow in size by doubling. So, we should be able to predict the capacity of MyString as acquiring a patten of 10, 20, 40, 80, ⦠bytes of memory depending of the number of characters stored.
Attributes:
int size â the number of characters currently stored in the string object. Do NOT count the NULL character.
int capacity â the number of bytes currently allocated. This should always be at least size + 1. The extra byte is needed to store the NULL character.
char *data â character pointer that points to an array of characters.
Member Functions:
MyString( ) Constructor
MyString(const char *) Constructor with an initialization character string
~MyString( ) Destructor
MyString(const MyString &) Copy constructor
MyString& operator = (const MyString&) Overloaded assignment operator, make a copy of MyString object
bool operator == (const MyString&) const overloaded equivalence relational operator
char& operator [ ] (int) overloaded [ ] should return a char by reference
void operator += (const MyString&) overloaded += operator, use to concatenate two MyStrings
MyString operator + (const MyString&) const Create a new MyString object that is the concatenation of two MyString objects
void getline(istream&, char delimit = â\nâ); reads an entire line from a istream. Lines are terminated with delimit which is newline â\nâ by default
int length( ) const; return the length of the string
friend ostream& operator<< (ostream&, MyString&); overloaded insertion operator

Which of these statements are true? A. You can select all the items in the section of the menu. B. In the center section of the menu only one item can be selected at a time. C. Details is selected. D. Thumbnails, tiles, icons, and list are selected.

Which design principle involves mentally dividing up an image with two horizontal lines and two vertical lines