Question #104184

Unless stated otherwise, use 344 m/s for the speed of sound in air.

1. An astronaut visiting another planet measures the speed of sound in that atmosphere to be 950 m/s. She measures the density of the atmosphere to be 3.10 kg/m3.

a)What is the bulk modulus of this atmosphere?

b)What is the frequency of the 5th harmonic for an organ pipe of length L = 0.750 m open at both ends on this planet?

c)Suppose the astronaut now uses her hand to close one end of the pipe. What is the new length of pipe that would be needed to produce a 5th harmonic with the same frequency as you found in b)?

1. An astronaut visiting another planet measures the speed of sound in that atmosphere to be 950 m/s. She measures the density of the atmosphere to be 3.10 kg/m3.

a)What is the bulk modulus of this atmosphere?

b)What is the frequency of the 5th harmonic for an organ pipe of length L = 0.750 m open at both ends on this planet?

c)Suppose the astronaut now uses her hand to close one end of the pipe. What is the new length of pipe that would be needed to produce a 5th harmonic with the same frequency as you found in b)?

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