A power cycle operating at steady state receives energy by heat transfer at a rate QH at TH = 1800 K and rejects energy by heat transfer to a cold reservoir at a rate QC at TC = 600 K. For each of the following cases, determine whether the cycle operates reversibly, operates irreversibly, or is impossible.

(A) QH =500kW, QC =100kW
(B) QH = 500 kW, Wcycle = 250 kW, QC = 200 kW
(C) Hot reservoir at Q = 1000°R
(D) Wcycle =350kW, QC =150kW

answer:

explanation:

sbbdbdbdbdbdndjd

answer:

yes that is right have a good day

answer:

my guess it 8 i'm probably wrong

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)