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Anni [7]
3 years ago
10

Technician A says that a lead acid battery uses straight Hydrochloric acid for electrolyte. Technician B says that a lead acid b

attery uses straight sulfuric acid for electrolyte.
Computers and Technology
2 answers:
konstantin123 [22]3 years ago
7 0

Technician B is correct

It is safe to say that Lead acid uses sulfuric acid. When fully charged, the electrolyte consist of 40% concentrated sulfuric acid and the remainder consist of mostly water. However, as it discharges, both the positive and the negative plates turn into lead sulfate with the electrolyte loosing much of its dissolved sulfuric acid and water.

Tema [17]3 years ago
4 0

Technician A is correct because i tried Technician B and it was wrong so its Technician A

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Assure that major, minor, sub1 and sub2 each contain four digit numbersIf less than four digits are entered in major OR minor OR
Zigmanuir [339]

Answer:

import re

#section 1

while True:

   try:

       major=input('Enter Major: ')

       if re.search(r'^\d{1,4}$',major):

           minor=input('Enter minor: ')

       else:

           raise

       try:

           if re.search(r'^\d{1,4}$',minor):

               sub1=input('Enter sub1: ')

           else:

               raise

       

           try:

               if re.search(r'^\d{1,4}$',sub1):

                   sub2=input('Enter sub2: ')

               else:

                   raise

           

               try:

                   if re.search(r'^\d{1,4}$',sub2):

                       break

                   else:

                       raise

               except:

                   print('enter a correct sub 2')

           except:

               print('enter a correct sub1')        

       except:

           print('Enter a correct minor ')            

   except:

        print('enter a correct Major')

#section 2

sub1= f"{int(sub1):04d}"

sub2= f"{int(sub2):04d}"

major= f"{int(major):04d}"

minor= f"{int(minor):04d}"

if major == '0000' and minor == '0000' and sub1=='0000' and sub2=='0000':

   print('INVALID!!! Acount Number')

else:

   print('-----------------------')

   print('Your Account Number is')

   print(major, minor, sub1, sub2)

   print('-----------------------')

Explanation:

The programming language used is python 3

The Regular  Expression Module was imported to allow us perform special operations on string variables.

This is the pattern that was used to check if an input was valid or invalid re.search(r'^\d{1,4}$',string)

what this pattern does is that it ensures that:

  1. (\d) represents digits that is any number from 0-9.
  2. ( ^ ) ensures that it starts with a digit.
  3. ({1,4}) accepts digits with length ranging from 1-4. i.e you can enter at least one digit and at most four digits.
  4. ($) ensures that the input ends with a digit
  5. string is the text that is passed to the pattern

we also made use of fstrings

sub1= f"{int(sub1):04d}"

the above line of code takes 'sub1' in this case, and converts it temporarily to an integer and ensures it has a length of 4 by adding 0's in front of it to convert it to a four digit number.

These are the major though areas, but i'll explain the sections too.

#section 1

In this section the WHILE loop is used in conjunction with the TRY and EXCEPT block and the IF statement to ensure that the correct input is given.

The while loop will keep looping until the correct input is inserted  before it breaks and each input is tested in the try and except block using the if statement and the regular expression pattern I explained, as a result, you cannot input a letter, a blank space, a punctuation or numbers with length greater than 4, it has to be numbers within the range of 1-4.

#section 2

The second section converts each entry to a four digit number and checks with an if statement if the entry is all zeros (0000 0000 0000 0000) and prints invalid.

Otherwise, it prints the account number.

check the attachment to see how the script runs.

4 0
3 years ago
The list method reverse reverses the elements in the list. Define a function named reverse that reverses the elements in its lis
Alisiya [41]

Answer:

public class Reverse {

  1.    public static void reverseList(int list [], int n)
  2.    {
  3.        int[] reversedList = new int[n];
  4.        int k = n;
  5.        for (int i = 0; i < n; i++) {
  6.            reversedList[k - 1] = list[i];
  7.            k = k - 1;
  8.        }
  9.        //printing the reversed list
  10.        System.out.println("The Reversed list \n");
  11.        for (int j = 0; j < n; j++) {
  12.            System.out.println(reversedList[j]);
  13.        }
  14.    }

Explanation:

Using Java, An array is implemented to hold a list of items

A method reverseList() is created to accept an array as parameter and using a for statement reverses the elements of the array and prints each element of the list

See below a complete code with a main method that calls this method

<em>public class Reverse {</em>

<em>    public static void main(String[] args) {</em>

<em>        int [] arr = {10, 20, 30, 40, 50};</em>

<em>        reverseList(arr, arr.length);</em>

<em>    }</em>

<em>    public static void reverseList(int list [], int n)</em>

<em>    {</em>

<em>        int[] reversedList = new int[n];</em>

<em>        int k = n;</em>

<em>        for (int i = 0; i < n; i++) {</em>

<em>            reversedList[k - 1] = list[i];</em>

<em>            k = k - 1;</em>

<em>        }</em>

<em>        //printing the reversed list</em>

<em>        System.out.println("The Reversed list \n");</em>

<em>        for (int j = 0; j < n; j++) {</em>

<em>            System.out.println(reversedList[j]);</em>

<em>        }</em>

<em>    }</em>

<em>}</em>

7 0
3 years ago
Vitamins and minerals dissolve easily in water.True or false?
noname [10]
True vitamins and minerals dissolves in water
8 0
3 years ago
What is the maximum amount of memory that vmachine1 can use in its current configuration with startup ram set to 1024 megabytes?
lidiya [134]

The answer is 1024MB.

I am really not in a position to answer this question fully since the lab is not provided but according to the research conducted online, the answer is 1024MB. According to the book, based on the physical memory installed on the PC, the current system shows 1.06GB which is equivalent to 1060MB. Thus, it is able to use all 1024MB.






7 0
3 years ago
A(n) _____ is the highest educational degree available at a community college. master bachelor associate specialist
baherus [9]
<span>An associate's degree requires two years of academic study and is the highest degree available at a community college</span>
5 0
3 years ago
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