This action potential is moving along the axon at 20 m/s in the positive direction.1.1 Sketch the shape of the action potential as a function of position at some arbitrary moment in time.1.2Label the features of your sketch (A, B, C, D, E).1.3 What is the approximate distance between points A and E on your sketch

Two loudspeakers, 5.5 m apart and facing each other, play identical sounds of the same frequency. you stand halfway between them, where there is a maximum of sound intensity. moving from this point toward one of the speakers, you encounter a minimum of sound intensity when you have moved 0.33 m . assume the speed of sound is 340 m/s.part a) what is the frequency of the sound? part b) if the frequency is then increased while you remain 0.21 m from the center, what is the first frequency for which that location will be a maximum of sound intensity? express your answer to two significant figures and include the appropriate units.