5 of 10 Questions Assignment Score: 0% Resources Ly Give Up? Hint Check Answer X 1 Question 0% 0 of co Attempts 20 A weather emergency siren is mounted on a tower, 177 m above the ground. On one hand, it would be a good idea to make the 2 Question 0% siren very loud so that it will warn as many people as possible. On the other hand, safety regulations prohibit the siren from 0 of co Attempts exceeding an intensity level of 106 dB for workers standing on the ground directly below the siren. @ Macmillan Learning 3 Question 0% 0 of co Attempts Assuming that the sound is uniformly emitted, what is the maximum power that the siren can put out? 4 Question 0% 0 of co Attempts maximium power output: W 5 Question 0% 0 of . Attempts How far away from the base of the tower can a person be and still be able to hear the siren? Neglect any absorption of sound 6 Question 0% energy by the air; although, in reality, such absorption would be significant at long distances. 0 of co Attempts 7 Question 0% 0 of co Attempts maximum audible distance: m 8 Question 0% 0 of co Attempts 9 Question 0% 0 of co Attempts 10 Question 0% 0 of co Attempts7 of 10 Questions Assignment Score: 0% Resources Ly Give Up? Hint Check Answer Press Esc to exit full screen 1 Question 0% 0 of co Attempts As you stand near a railroad track, a train passes by at a speed of 34.5 m/s while sounding its horn at a frequency of 215 Hz. 2 Question 0% What frequency do you hear as the train approaches you? What frequency do you hear while it recedes? Use 343 m/s for the 0 of co Attempts speed of sound in air. Macmillan Learning 3 Question 0% 0 of co Attempts approaching: Hz receding: Hz 4 Question 0% 0 of co Attempts 5 Question 0% 0 of co Attempts 6 Question 0% 0 of co Attempts 7 Question 0% 0 of co Attempts 8 Question 0% 0 of co Attempts 9 Question 0% 0 of co Attempts 10 Question 0% 0 of co Attempts