A bee produces a buzzing sound that is barely audible to a person 3.0 m away. How many bees would have to be buzzing at that distance to produce a sound with an intensity level of 50 dB?
Answer to relevant QuestionsA violinist and a pianist simultaneously sound notes with frequencies of 436 Hz and 440 Hz, respectively. What beat frequency will the musicians hear? While standing near a railroad crossing, you hear a train horn. The frequency emitted by the horn is 400 Hz. If the train is traveling at and the air temperature is 25 oC, what is the frequency you hear (a) When the train ...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? The human ear canal is about 2.5 cm long. It is open at one end and closed at the other. (a) What is the fundamental frequency of the ear canal at 20 oC? (b) To what frequency is the ear most sensitive? (c) If a ...An open organ pipe, in its fundamental mode, has a length of 50.0 cm. A second pipe, closed at one end, is also in its fundamental mode. A beat frequency of 2.00 Hz is heard. Determine the possible lengths of the closed ...
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