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kifflom [539]
2 years ago
7

Oxygen-18 has an atomic number of 8. How many neutrons are in this isotope?

Computers and Technology
1 answer:
cluponka [151]2 years ago
6 0
18-8=10.................................
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phone !!

Explanation:

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Arrange the code so that the numbers are swapped.
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Rand.int(your_num , your_num
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Test if the word mold is stored in the variable word. Computer science.
Andre45 [30]

Answer:

word = str("Enter a word: ")

if "mold" in word:

 print("Mold is in the variable word.")

else:

 print("Mold is not in the variable word.")

5 0
3 years ago
Write a program that defines an interface having the following methods: addition, subtraction, multiplication, and division. Cre
Tatiana [17]

Hello, you haven't provided the programing language in which you need the code, I'll explain how to do it using Python, and you can follow the same logic to make a program in the programing language that you need.

Answer:

1. # -*- coding: utf-8 -*-

2. #Python  

3. class Calculator:

4.     def add(self):

5.         print(a + b)

6.     def sub(self):

7.         print(a - b)

8.     def mul(self):

9.         print(a * b)

10.     def div(self):

11.         print(a / b)

12.  

13. obj = Calculator()

14. choice = 1

15. while choice != 0:

16.     a = int(input("\nEnter first number: "))

17.     b = int(input("Enter first number: "))

18.      

19.     print("\n0. EXIT")

20.     print("1. DIVISION")

21.     print("2. ADDITION")

22.     print("3. SUBTRACTION")

23.     print("4. MULTIPLICATION")

24.      

25.     choice = int(input("\nEnter your choice: "))

26.     if choice == 1:

27.         obj.div()

28.     elif choice == 2:

29.         obj.add()

30.     elif choice == 3:

31.         obj.sub()

32.     elif choice == 4:

33.         obj.mul()

34.     else:

35.         break

Explanation:

  • From lines 1 to 12 we define the object with four methods, addition, subtraction, multiplication, and division. Each method contains the operation between two variables inside a print function
  • On line 13 we instantiate our class
  • On line 14 we declare the variable choice that is going to store the operation that the user wants to perform
  • On line 15 we declare a while loop, this is going to keep running the program until the user wants to exit
  • From line 16 to 18 we ask the user to enter two numbers
  • From line 19 to 24 we print the possible operation, assigning a number for each operation, this indicates to the user what number to press for what operation
  • On line 25 we ask the user for the operation
  • From lines 26 to 35 we check the user input an accordingly we call the corresponding method to performs the operation
7 0
3 years ago
If a firm puts Internet-facing servers directly in the Internet, they are exposed to threats of attack from anywhere in the worl
djverab [1.8K]

Answer:

True.

Explanation:

If a firm puts servers that are internet facing directly on the internet then the servers are exposed to external attacks and these attacks can be from anywhere in the world.

The server becomes vulnerable or unsafe and attackers can attack and can manipulate or tamper the server code from anywhere in the world.

8 0
3 years ago
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