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A tube is partially and vertically inserted into a container of water. The sequential resonant frequencies are hears when a 215-Hz tuning is struck and held atop the end of the tube is 15cm from the surface of the water. Another resonant frequency is heard when the top of the tube is 95cm from the surface of the water.
a) What is the speed of the water?
b) What is the temperature of the surrounding air?
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