3. A rock band playing an outdoor concert produces sound at 120 dB 5.0 m away from their single working loudspeaker. Ignore sound reflected from walls and other objects and consider sound originating directly from the speakers. a. What is the sound intensity level 35 m from the speaker? b. What is the delay between the time the sound leaves the speaker and arrives at this point on a very cold day (0 degrees Celsius)? A hot day (40 degrees Celsius)? c. How far away from the speaker should you stand to ensure the intensity does not exceed 80 dB, and what is the intensity at this location? 81dB, and what is the intensity at this location?