A thermopane window consists of two pieces of glass 7 mm thick (kg = 1.4 W/m⋅K) that enclose an air space 10 mm thick (ka = 0.05 W/m. K). The window separates room air at 20°C from outside ambient air at -10°C. The convection coefficient associated with the inner (room-side) surface is hi = 10 W/m²⋅K and the convection coefficient associated with the outer(ambient) air is 80W/m²⋅K. The glass has a thermal conductivity of 0.78W/m⋅K. The thermal conductivity of the air at the average temperature of T_avg = 0.5 (20−10) = 5 °C is 0.0.02401 W/m⋅K. Neglect radiation and assume the air enclosed between the panes to be stagnant (no motion).
Determine the following:
(a) The rate of heat transfer through the window in W.
(b) The temperature at point 2 (see figure below) in degree Celsius.

answer:

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explanation:

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)

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