Arabbit hears the cry of an owl. it responds by freezing in place, completely motionless. which of the rabbit's systems must coordinate for the rabbit to respond with this behavior? nervous system auditory system olfactory system muscle system digestive system

Aman throws a football straight into the air. as it rises, it slows down. which type of energy is the football gaining?

At a certain instant after jumping from the airplane a, a skydiver b is in the position shown and has reached a terminal (constant) speed vb = 52 m/s. the airplane has the same constant speed va = 52 m/s, and after a period of level flight is just beginning to follow the circular path shown of radius ρa = 2330 m. (a) determine the velocity and acceleration of the airplane relative to the skydiver. (b) determine the time rate of change of the speed vr of the airplane and the radius of curvature ρr of its path, both as observed by the nonrotating skydiver.

This is the number of complete movements of a wave per second.