A man stands at the midpoint among two speakers that are broadcasting an amplified static hiss uniformly in all directions. The speakers are 28.2 m apart and the total power of the sound coming from each speaker is 0.470 W.
a) Discover the total sound intensity that the man hears when he is at his initial position halfway among the speakers.
b) Discover the total sound intensity that the man hears after he has walked 4.4 m directly toward one of the speakers.