A collar A of mass m is moving with a speed v when it strikes an identical collar B that is at rest. Knowing that the coefficient of restitution between the collars is e, identify the correct relation for the energy lost in the impact as a function of m, e, and v.

no he didnt use it

explanation:

he said no

answer:

› 2-

2. determine the proper pump operating conditions and bit nozzle sizes for - chegg

answer:

person b

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)