Sound enters the ear, travels through the auditory canal, andreaches the eardrum. The auditory canal is approximately a tubeopen at only one end. The other end is closed by the eardrum. Atypical length for the auditory canal in an adult is about2.8 cm. If the speed of sound is344 m/s. What is the fundamental frequencyof the canal? (Interestingly, the fundamental frequency is in thefrequency range where human hearing is most sensitive.)

Answertraveling around a circular trackexplanation"traveling around a circular track" is the best answer as you could be traveling around a circular track at a constant speed. your velocity would therefore have the same magnitude but will always be constantly direction. since acceleration is the rate of change of velocity, the rate of change will only involve the direction of velocity and not the magnitude.wrong choices: "an object at rest" does not accelerate at all"increasing speed while traveling around a curve" means that the acceleration will not be constant due to only change in direction; it will be constant due to both magnitude and direction"an object in free fall" does not necessarily change direction