Which part talks about protecting the nation from preamble?

How does a digital tachometer work using 555 timer op to IC7490-7492-7492 another 555 timer to three IC74160? Can another employee tell clients you were fired? Are sermons copyrighted? Who created fair use? Job of the executive branch? Can you stop back child support when the child is now an adult? What are some of the rules that are different for the house and the senate? What is the yearly salary of a bin man? How do you remove a lien from your property that actually affects a person with a similar name? Are the covers provided copyright free? What federal office can be contacted to report employment discrimination? Why blank of powers means that each branch of government is independent? What must occur before a bill can become a law? What was the first word ever written? In a loose constructionist perspective how is the constitution viewed? How many members of any third party in the senate or house are there? Will a legal contract be enough to protect you if you sell a house that is not in your name or on the deed in order to get half the equity? Under what conditions can you collect unemployment? Can a restaurant legally make a server pay for a walkout? What is the main object of an action in tort?