A sound source sends a sinusoidal sound wave of angular frequency 3000 rad/s and amplitude 12.0 nm through a tube of air. The internal radius of the tube is 2.00 cm. (a)What is the average rate at which energy (the sum of the kinetic and potential energies) is transported to the opposite end of the tube? (b) If, simultaneously, an identical wave travels along an adjacent, identical tube, what is the total average rate at which energy is transported to the opposite ends of the two tubes by the waves? If, instead, those two waves are sent along the same tube simultaneously, what is the total average rate at which they transport energy when their phase difference is (c) 0, (d) 0.40p rad, and (e) p rad?
Interference of sound
Seiche
A seiche is an oscillating standing wave in a body of water. The term seiche pronounced saysh) can be understood by the sloshing of water back and forth in a swimming pool. The same phenomenon happens on a much larger scale in vast bodies of water including bays and lakes. A seizure can happen in any enclosed or semi-enclosed body of water.
A sound source sends a sinusoidal sound wave of angular
frequency 3000 rad/s and amplitude 12.0 nm through a tube of air.
The internal radius of the tube is 2.00 cm. (a)What is the average
rate at which energy (the sum of the kinetic and potential energies)
is transported to the opposite end of the tube? (b) If, simultaneously,
an identical wave travels along an adjacent, identical tube,
what is the total average rate at which energy is transported to the
opposite ends of the two tubes by the waves? If, instead, those two
waves are sent along the same tube simultaneously, what is the total
average rate at which they transport energy when their phase
difference is (c) 0, (d) 0.40p rad, and (e) p rad?
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