11/20/13, Wednesday
Post date: Nov 20, 2013 3:17:59 PM
Bell Ringer
Bell Ringer
If a political even coordinator is planning a speech, she may need to order a sound system. If she knows the closest people will be 2.5 meters from the speaker, and the farthest people will be 125 meters away, and she wants to make sure the sound level is between 50 and 90 dB for everyone, what range of power outputs for the speaker could she use?
Activities
Activities
Questions on practice, assignment?
Notes, discussion: human hearing and resonance
Assignment
Assignment
Pages 434-437: 9-11, 18, 20, 22, 23, 34, 35, 37 (Due Friday, 11/22)