Response to the following:
1. A standing wave of frequency 1100 Hz in a column of methane at 293 K produces nodes that are 20 cm apart. What is ϒ,?
2. The speed of a longitudinal wave in a mixture of helium and neon at 300 K was found to be 758 m/s. What is the composition of the mixture?
Make sure you use enough details to support your answer.