Which of the following statements is true of optimum arousal theory?
a. it emphasizes the cannon-bard theory.
b. it states that performance is best under conditions of high arousal rather than moderate arousal.
c. it rejects the idea that the human body tends to maintain a steady state.
d. it focuses on the yerkes-dodson law.

20. threshold braking in the vehicle's braking system occurs when a. the brake pedal is pushed, heel on floorboard, with full foot pressure. b. the brakes are exerting full braking power, without traction loss. c. the driver begins pushing down the brake pedal, with moderate slowdown. d. the brakes just begin to take hold with a gradual slowdown.

Use the right-hand rule for magnetic force to determine the charge on the moving particle. this is a charge.

Which of the following is not a means to accelerating? question 4 options: a)increase speed b)remain still c)decrease speed d)change direction