9. A tuning fork makes a frequency of 440 Hz, if it is held in front of an open closed pipe. Assume room temperature is 20 degrees. What distances would allow standing waves to be produced, if the pipe is able to expand as shown? a. b. If a different tuning fork is used and the first position that makes a standing wave is 15.0 cm from the opening and the second is 45.0 cm, what is the frequency of this tuning fork? c. After working really hard on a hot day a third tuning fork is used with a frequency of 1053 Hz, and the distance between the 1" and 3" standing wave created is 33.0 cm, what is the temperature of the air in this pipe?

What is the dynamic range of human ear?a. threshold of hearing (W/m2)b. threshold of pain (W/m2)c. SIL of threshold of hearing(dB)d. SIL of threshold of pain(dB)e. Sound intensity level of 200 dB

The Wanamaker Pipe Organ in Macy's Center City department store in Philadelphia is the largest working pipe organ in the world. The organ occupies a seven- story hall, and has the longest pipe length of 9.75 m that occupies four floors and can be used as either an open or a closed pipe. Assume that the speed of sound is 345 m/s. a. Calculate the lowest fundamental frequency for the Wanamaker Pipe Organ. b. The highest note on an 88-key piano is 4186 Hz. What would be the length of a pipe open on one end that produced this as a fundamental frequency?

a. What is the fundamental frequency of a 0.533-m-long tube, open at both ends, on a day when the speed of sound is 344 m/s? f1 Hz b. What is the frequency of its second harmonic? f2 = Hz