Help me solve these physics motion (d-t time graph questions)

What is magnetic flux? explain faraday's law of induction.

It can take some of those large , industrial vehicles up to feet to stop when traveling only 60 mph, and therefore , you shoukd be mindful to not be jn the traffic right in front of them a. 100 feet b. 200 feet c. 335 feet d. 425 feet

Need asap ‼️ 20 pts which gravitational force field diagram is drawn correctly? (answers in pictures below)