An auditorium has organ pipes at the front and at the rear of the hall. Two identical pipes, one at the front and one at the back, have fundamental frequencies of 266.0 Hz at 20.0°C. During a performance, the organ pipes at the back of the hall are at 26.00°C, while those at the front are still at 20.0°C. What is the beat frequency when the two pipes sound simultaneously? Hz

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 includ…