# Question

A dog’s bark has a sound intensity level of 40 dB.

(a) If two of the same dogs were barking, the intensity level is (1) less than 40 dB, (2) between 40 dB and 80 dB, (3) 80 dB.

(b) What would be the intensity level?

(a) If two of the same dogs were barking, the intensity level is (1) less than 40 dB, (2) between 40 dB and 80 dB, (3) 80 dB.

(b) What would be the intensity level?

## Answer to relevant Questions

What temperature change from 0oC would increase the speed of sound by 1.0%? A 1000-Hz tone from a loudspeaker has an intensity level of 100 dB at a distance of 2.5 m. If the speaker is assumed to be a point source, how far from the speaker will the sound have intensity levels (a) Of 60 dB and (b) ...On a day with a temperature of and no wind blowing, the frequency heard by a moving person from a 500-Hz stationary siren is 520 Hz. (a) The person is (1) moving toward, (2) moving away from, or (3) stationary relative to ...The half-angle of the conical shock wave formed by a supersonic jet is 30o. What are (a) The Mach number of the aircraft and (b) The actual speed of the aircraft if the air temperature is – 20 oC? An organ pipe that is closed at one end has a length of 0.80 m. At 20 oC, what is the distance between a node and an adjacent antinode for (a) The second harmonic and (b) The third harmonic?Post your question

0