Can primary and/or secondary authority materials also be used as finding tools?

Who is the official leader of the state?

Vehicle #1 skidded 50 ft before impact with a drag factor of 0.80, how far from impact was vehicle #1 when vehicle #2 first began to accelerate from being stopped?

5o points! urgent! i need some with these questions: 1. is forced impeachment a legal punishment? yes/ no 2. do personnel have the right to court? yes/no/unsure 3. how long is the statute of limitations for a murder case? * 7 days 3 weeks 1 month unsure 4.