For a steel alloy it has been determined that a carburizing heat treatment of 20 h duration at 827°C will raise the carbon concentration to 0.42 wt% at a point 3.9 mm from the surface. Estimate the time necessary to achieve the same concentration at a 7.2 mm position for an identical steel and at a carburizing temperature of 1040°C. Assume that D0 is 4.5 × 10-4 m2/s and Qd is 105 kJ/mol.

answer:

it will water down the soup lol

explanation:

answer:

design model: consists of design geometry; can be 2d or 3d; typically has a black background.

design files: drawing created with microsoft expression design, a drawing and design program for windows; may contain both vector and raster graphics; can also include multiple layers and various image effects.

elements: an element is a single part of a larger group.

hello glad to meet you if you know the answer, what am i saying?

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)