Water flows through a horizontal 60 mm diameter galvanized iron pipe at a rate of 0.02 m3/s. if the pressure drop is 135 kpa per 10 m of pipe, do you think this pipe is
a) a new pipe,
b) an old pipe with somewhat increased roughness due to aging or
c) a very old pipe that is partially clogged by deposits. justify your answer.

pipe is old one with increased roughness

Explanation:

discharge is given as

V = 7.07  m/s

from bernou;ii's theorem we have

as we know pipe is horizontal and with constant velocity so we have

solving for friction factor f

f = 0.0324

fro galvanized iron pipe we have

reynold number is

Re = 378750

from moody chart

therefore new friction factor is less than old friction factoer hence pipe is not new one

now for Re = 378750 and f = 0.0324

from moody chart

we have

thus pipe is old one with increased roughness

answer:

sure that would be nice

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)