2. Watch the video starting from 1:22 through to 1:35. a. Describe what you observed. b. Which force (gravity, drag) affects the feather the most? Which affects the ball the most? 3. If only half the air had been removed from the chamber, predict what would happen when the ball and feather are dropped and explain why you think this is so. 4. If there was twice the air (double the atmospheric pressure) inside the chamber, predict what would happen when the ball and feather are dropped and explain why you think this is so