An open pipe is open at both ends and a closed pipe is closed at one end and open at the other. a) Draw the first 3 modern standing waves in an open pipe and in a closed pipe. b) if the open pipe is 150 mm long, what is the longest length that the closed pipe can have if it is to be a 2.5 Hz oscillation between the fundamental tones from the pipes? Assumes that the sound speed is 343 m / s. c) at what speed and in the direction relative to the pipes, which are placed next to each other, should a microphone be moved in order for it to detect a hovering frequency of 2.60 Hz between the fundamental tones from the pipes?

An open pipe is open at both ends and a closed pipe is closed at one end and open at the other. a) Draw the first 3 modern standing waves in an open pipe and in a closed pipe. b) if the open pipe is 150 mm long, what is the longest length that the closed pipe can have if it is to be a 2.5 Hz oscillation between the fundamental tones from the pipes? Assumes that the sound speed is 343 m / s. c) at what speed and in the direction relative to the pipes, which are placed next to each other, should a microphone be moved in order for it to detect a hovering frequency of 2.60 Hz between the fundamental tones from the pipes?