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A length of organ pipe is closed at one end. If the speed of sound is 344 m/s, what length of pipe (in cm) is needed to obtain a fundamental frequency of 50 Hz?
Police Department
A government agency responsible for the enforcement of laws, protection of property, and maintenance of public order.
Trainees
Individuals who are undergoing training in a particular skill or profession.
Cowardly
Showing a lack of courage or bravery; easily scared to face danger, pain, or adversity.
Panic
An intense, sudden feeling of fear or anxiety that can cause physical symptoms and irrational behavior.
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