What organization did world leaders create after World War II that had the purpose of maintaining world peace?

Mark the following that led to the rise of Imperialism by the end of the 19th century.

What did the Nazi’s establish to help them with the “Final Solution”?

The Korean War and Vietnam War were fought to stop the spread of communism.

For the slider crank mechanism below. At this instant, the input crank (4 in) is rotating counterclockwise at 1 rad/s. What will be the magnitude of the angular velocity of coupler link (6 inch) in rad/s.  (Just enter a positive number to three decimal places, no spaces, no units)(Hint: analytical way is better!)

After the exam is over. You have 10 minutes to upload your work for the relevant free response questions (not the auto-graded ones). Upload as a single pdf file.  Make sure you upload the correct file, not some random HW from some course 🙂

Below are auto-graded questions(Multiple choice, Short answer, etc.) No need to show any work for these!

20) What is the diameter of the disk of the Milky Way?

2) How big is a neutron star?

4) What happens when the gravity of a massive star is able to overcome neutron degeneracy pressure?