A commercial grade cubical freezer, 3m on a side, has a composite wall consisting of an exterior sheet of 6.35mm-thick plain carbon steel, an intermediate layer of 100mm-thick aluminum alloy (2024). Adhesive surfaces between the insulation and the metallic strips are each characterized by a thermal contact resistance of R=2.5*10^-4 m^2*K/W. What is the steady-state cooling load that must be maintained by the refrigerator under conditions for which the outer and inner surface temperatures are 22 degrees celsius and -6 degrees celsius, respectively?

answer:

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answer:

// here is code in C++.

#include <bits/stdc++.h>

using namespace std;

//main function

int main()

{

  // variable

 int n;

 cout<<"enter a number:";

 // read the input

 cin>>n;

 // find the square root of the absolute value

 float square_root=sqrt(abs(n));

 // print the square_root

 cout<<"square root of "<<n<<" is: "<<square_root<<endl;

  return 0;

}

Explanation:

Read a number from user and assign it to "n".Then find its absolute value with abs() function.Then calculate the square root of the absolute value with sqrt() function.Print the square root of the number.

Output:

enter a number:-17

square root of -17 is: 4.12311

                                                         This is easy

                                                     sinserly Natalie 7 grader (this is not that hard)