In an experiment, the speed of sound waves was compared to the density of the medium they passed through. Using the information in the data table below, describe the relationship between the density of the material and the speed of the sound waves. Explain why the relationship between the two exists, and hypothesize the relationship that light waves would have with the density of the materials
medium density(g/ml)speed(m/s)
copper -8.9 6420
steel 7.86 5940
water 1 1496
ethanol=0.79--- 1207
air 0.00139 331.45
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