Help with both questions I’ll mark brainliest

To create electromagnetic induction, which of the following has to move? a. a wire b. a magnet c. a transformer d. either a or b

World class speed skaters can skate a 3,000-m course in about 4 minutes.what is their average speed for this course? a. 12.5 m/sb. 1.33 m/sc. 1.25 m/sd. 13.3 m/s

Suppose you increase your walking speed from 7 m/s to 13 m/s in a period of 2 s. what is your acceleration?