subject
Physics, 09.10.2019 04:20 iamabeast51

Aweather emergency siren is mounted on a tower, 129 m above the ground. on one hand, you would like to make the siren very loud so that it will warn as many people as possible. on the other hand, safety regulations prohibit you from exceeding an intensity level of 111 db for workers standing on the ground directly below the siren. assuming that the sound is uniformly emitted, what is the maximum power that the siren can put out?

ansver
Answers: 3

Other questions on the subject: Physics

image
Physics, 22.06.2019 01:30, LarryJoeseph
Question 7 [2 marks] in the circuit below, the electromotive force generated by the battery is e = 6.0 v, and the resistances are r1 = r4 = 1.0 q, r2 = r3 =2.0 q. r. the power delivered by the battery to the circuit is closest to a. 6 w в. 12 w с. 15 w d. 18 w e. 20 w final exam autumn 2014 page 5 of 9 68037 physical modelling faculty of science [2 mark] question 8 with reference to question 7, the current through resistor r2 is closest to a. 1 a в. 2 а c. 3 a d. 4 a e. 6 a
Answers: 2
image
Physics, 22.06.2019 13:30, tiffg3140
Why do astronauts in the space shuttle weigh less?
Answers: 3
image
Physics, 22.06.2019 15:00, deonnaturner68p7hz7y
What sort of waves exhibit the doppler effect?
Answers: 1
image
Physics, 22.06.2019 22:30, ari9425
Compare the patterns of the two waves shown in the image. which statement is true about these waves?
Answers: 1
You know the right answer?
Aweather emergency siren is mounted on a tower, 129 m above the ground. on one hand, you would like...

Questions in other subjects:

Konu
Mathematics, 11.03.2021 01:20