A steel spur pinion has a pitch of 6 teeth/in, 22 full-depth teeth, and a 20° pressure angle. The pinion runs at a speed of 1200 rev/min and transmits 15 hp to a 60-tooth gear. If the face width is 2 in, estimate the bending stress.

27.7Mpa

Explanation:

d = Nm = 22(6) = 132mm

From values of Lewis from factor Y.

Y = 0.331

V = πdn = π(0.132)(1200/60)

= 8.297 m/s

Using Dynamic Effect equation (cut/milled profile)

Kv = (6.1 + 8.297)/6.1

= 2.36

W¹ = Hp/πdn

Converting Hp to W

= 15hp ≈ 11190W

= 11190/π(0.132)(1200/60)

= 11190/8.29= 1349.82N

∆ = KvW¹/mFY

converting inches to millimeter 1in ≈ 2.54mm

= 2.36(1349.82)/ 0.006 (0.058)(0.331)

= 3185.5752/0.000115188

= 27655443.2753

=27.7Mpa.

answer:

a

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)