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3 years ago

Chemical equations of Carbon + water

Computers and Technology

1 answer:

Setler79 [48]3 years ago

8 0

Answer:

Aqueous carbon dioxide, CO2 (aq), reacts with water forming carbonic acid, H2CO3 (aq). Carbonic acid may loose protons to form bicarbonate, HCO3- , and carbonate, CO32-. In this case the proton is liberated to the water, decreasing pH. The complex chemical equilibria are described using two acid equilibrium equations.

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a password to a certain database consists of digits that cannot be repeated. if the password is known to consist of at least 8 d

BaLLatris [955]

Answer:

$\frac{10!}{2}mins$

Explanation:

12 seconds to try one combination will be equivalent to $\frac{1}{12}\times 60 = \frac{1}{5} \ mins$

Password contain at least 8 digit i.e. password can contain 8, 9, 10 digit.

Password cannot contain more than 10 digit because it will give room for repetition which it is clearly stated that digit cannot be repeated.

Possible digit that can be used: 9,8,7,6,5,4,3,2,1,0.

Total number of passwords combination possible for each position in 8 digit.

1st position = 10, 2nd position = 9, 3rd position = 8, 4th position = 7, 5th position = 6, 6th position = 5, 7th position = 4, 8th position = 3. Total number of passwords combination possible in 8 digit is equivalent to $\frac{10!}{2}$ .

Total number of passwords combination possible for each position in 9 digit.

1st position = 10, 2nd position = 9, 3rd position = 8, 4th position = 7, 5th position = 6, 6th position = 5, 7th position = 4, 8th position = 3, 9th position = 2. Total number of passwords combination possible in 9 digit is equivalent to $\frac{10!}{1}$ .

Total number of passwords combination possible for each position in 10 digit.

1st position = 10, 2nd position = 9, 3rd position = 8, 4th position = 7, 5th position = 6, 6th position = 5, 7th position = 4, 8th position = 3, 9th position = 2, 10th position = 1. Total number of passwords combination possible in 10 digit is equivalent to 10!.

Adding them up and multiplying by $\frac{1}{5} \ mins$ to get the total number of time needed to guarantee access to database = $[\frac{10!}{2}\times\ \frac{10!}{1} \times 10!] \frac{1}{5}\ mins = \frac{10!}{2}$

7 0

3 years ago

Create a website for an online movie rental store, using HTML (and any other client technologies) and PHP. The website should in

FromTheMoon [43]

Answer:

HTML and PHP code is given below using 10 movie selections

Explanation:

movierentalstore.php:-

<html>

<head>

<title> Online movie rent store </title>

</head>

<br>

<center><font face="Monotype corsiva" size="25" color="yellow"> @@ Movies available for rent right now @@ </font></center>

<li> Batman $40 * Cast :- Michael Keaton , Jack Nicholson , Kim Basinger / Robert Wuhl *

</li>

<li> Godzilla 2019 $30 * Cast :- Kyle Chandler, Vera Farmiga, Millie Bobby Brown * </li>

<li> Wonder Woman $50</li>

<li> Terminator $10</li>

<li> Avengers : End Game $20</li>

<li> Harry Potter $30</li>

<li> Annabelle $20</li>

<li> hustlers $10</li>

<li> Joker $50</li>

</ol>

</font>

<a href="renting.php" alink="white"> Click here to rent the movie ... </a>

<br>

<a href="review.php" alink="white"> Click here to review the movie ... </a>

</body>

</html>

review.php :-

<html>

<head>

<title> Reviewing Page </title>

</head>

<h1><center><font face="Monotype corsiva" size="25" color="yellow"> Review movie </center></font> </h1> <hr size="5" color="white">

<label>Select movie</label>

<option value="1" > batman</option>

<option value="2" > godzilla</option>

<option value="3" > wonder woman </option>

<option value="4" > terminator</option>

<option value="5" > avengers</option>

<option value="6" > Harry potter</option>

<option value="7" > Anabelle</option>

<option value="8" > Hustlers</option>

<option value="9" > Joker</option>

<br>

</select>

Username :- <input type="text" name="name1" required="" > </input>

Review :- <input type="text" name="review" required="" > </input>

<label>Select rating</label>

<br>

</select>

</form>

<?php

if(isset($_GET["submit"]))

{ $name1=$_GET["name1"];

$r=$_GET["review"];

$re=$_GET["rating"];

$m=$_GET["movie1"];

echo "Movie name :- ".$m." <br>";

echo "Username :- ".$name1." <br>";

echo "Review :- ".$r." <br>";

echo "Rating :- ".$re. "Stars "." <br>" ;

echo "Successfully submitted.. Thankks for your feedback " ;

}

</div>

</body>

</html>

rating,php

<html>

<head>

<title> Renting Page </title>

</head>

<h1><center><font face="Monotype corsiva" size="25" color="yellow"> Renting movie </center></font> </h1> <hr size="5" color="white">

<label>Select movie</label>

<option value="1" > batman</option>

<option value="2" > godzilla</option>

<option value="3" > wonder woman </option>

<option value="4" > terminator</option>

<option value="5" > avengers</option>

<option value="6" > Harry potter</option>

<option value="7" > Anabelle</option>

<option value="8" > Hustlers</option>

<option value="9" > Joker</option>

</select>

</form>

</div>

<?php

if(isset($_GET["submit"]))

{ $movie1=$_GET["movie1"];

echo "Selected movie is : ".$movie1;

echo "<br> </br>";

echo "Amount charged : " ;

switch($movie1)

{

case 1 : echo " 42 dollars" ;

break;

case 2: echo "31.5 dollars" ;

break;

case 3 : echo "52.5 dollars" ;

break;

case 4: echo " 10.5 dollars" ;

break;

case 5 : echo " 21 dollars" ;

break;

case 6 : echo "31.5 dollars" ;

break;

case 7: echo "21 dollars" ;

break;

case 8 : echo " 10.5 dollars" ;

break;

case 9: echo " 52.5 dollars" ;

break;

case 10 : echo " 16 dollars" ;

break;

}

echo "Successfully rented" ;

}

</div>

</body>

</html>

7 0

3 years ago

How do Europe and North America address the challenges of jurisdiction when a computer crime involves both continents?

Anastasy [175]

Answer:

A. Treaties

Explanation:

Based on the information provided within the question it can be said that in this type of situation where both countries are affected they usually enter into a treaty. This treaty represents an agreement between both countries on how they are going to handle the situation so that both countries get the justice that they want and therefore mutually benefit.

4 0

3 years ago

What will you see on the next line?

laila [671]

Answer:

[5, 10, 6, 32]

Explanation:

What myList.remove(6) will do is remove the first 6 it will encounter. It will cycle through the list like the following:

5 != 6 next element

6 = 6 remove

hope i helped :D

8 0

3 years ago

ollegr [7]

True??????????????????????????

7 0

3 years ago

Read 2 more answers

Chemical equations of Carbon + water​

Chemical equations of Carbon + water