Awater pump has an impeller that has a diameter of 8" and rotates at 1750 rpm. if the pump provides a discharge of 500 gal/min when operating at a head of 35 ft, determine une discharge and head if a similar pump is used with an impeller that has a diameter of 12" and turns at the same rate. the respective dimensionless flow rate and head coefficients are q/ωd^3 and ghp/ω^2d^2

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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