If a screw thread is just barely self locking, what will be its efficiency, e?(You’ll have to do some math)

Two steel bars are connected together by two M20x2.5 bolts as shown below. The bars are made of steel: use Sy = 490 MPa.  Bolts have Sy = 420 MPa.The bars are pulled apart (one up, one down) by a force of 160 kN, causing shearing in the bolts. (Assume the bolts share the load equally) (All dimensions below are in mm)What is the yield factor of safety for shear failure? [ns] (Pick the closest answer)What is the yield factor of safety for bearing stress failure in the bolt? [nb] (Pick the closest answer)What is the yield factor of safety for tension failure in the members? [nt] (Pick the closest answer)

When you complete a test or the final exam, you will see a similar statement to what is written below.  It will include a link to the appropriate dropbox for submitting your work.  Follow the directions below. If you are done with this quiz, you will take pictures through OneDrive and save as 1 pdf document.  Submit to Practice with Honorlock dropbox.  Then acknowledge the Academic Honesty pledge below and submit this “quiz.” I pledge that I am not cheating in any way on this test.  I am not having another person complete any part of the exam for me.  I am not interacting with any other person.  I am not accessing resources online.  I may use my notes but understand that I have limited time to complete the test, and looking through notes may prevent me from completing the test in the time allowed.   

Now, turn the paper over, and on the other side, write: I commit to setting aside time each week to focus on this course.  Then sign your name below the statement. Do not write anything in the box below.  Go on to the next question. 

When a resident who has a mental health disorder begins to show signs of frustration while providing care, which of the following would be the best response by the nursing assistant?

12. If the force between two charges has a magnitude 3.36 N when the charges are separated by 8.0 mm, the magnitude of the force between these two charges when separated by 12 mm is

18.  When a conductor is charged and static equilibrium has been established, all net charge is uniformly distributed on the surface. True or False?

20.  If an atom has become a positive ion, it has

16. If a helium ion is fromed by removing two electrons from a helium atom, the ion will have a charge that is 

6. A