What did wundt's pendulum experiment demonstrate? a. hearing sounds can confuse people when asked what they saw. b. watching a pendulum requires extreme focus. c. people need time to shift between two different stimuli.

the more fit you are, the faster the recovery. your heart rate drops most sharply in the first minute after you stop exercising; it should then fall about 20 beats a minute—a drop of less than 12 beats a minute is considered abnormal. this “recovery heart rate” is measured as part of an exercise stress test.