Hillyard and colleagues (1973) recorded event-related potentials (ERP) from participants while they performed a dichotic listening task. When comparing the ERPs collected when participants attended to a given signal to when they ignored this signal, the researchers found that auditory sensory ERPs

Awind turbine is rotating counterclockwise at 0.5 rev/s and slows to a stop in 10 s. its blades are 20 m in length. (a) what is the angular acceleration of the turbine? (b) what is the centripetal acceleration of the tip of the blades at t=0s? (c) what is the magnitude and direction of the total linear acceleration of the tip of the blades at t=0s?