A car has constant acceleration as it passes two checkpoints. The time taken between checkpoints is 4 s, and the car’s acceleration is 6 m/s2. If the car’s speed at the first checkpoint is 1 m/s, what is the speed at the second checkpoint?

How would a small bar magnet be oriented when placed at position x?

Which of the following bonds would be most polar? a. c-i b. c-br c. c-cl d. c-f e. c-o

Which statement is true if the refractive index of medium a is greater than that of medium b? a. total internal reflection is possible when light travels from air to medium b to medium a. b. total internal reflection is possible when light travels from medium a to medium b. c. total internal reflection is possible when light travels from medium b to medium a. d. total internal reflection is possible when light travels from air to medium a. e. total internal reflection is possible when light travels from air to medium b.