1. the arrangement to molecules in a medium affects the speed of sound. guess or air transmits sounds lower than liquid because the molecules that make up liquid.

A. fly in all directions at great speed
B. are held firmly and can vibrate in a limited area
C. flow easily because they are tightly packed
D. are far apart and attraction between molecular is insignificant

2. people hearing sound while submarine in pool is an evidence that sound requires a medium to travel. what medium is used in the given example?

A. gas
B. solid
C. liquid
D. All of the above

3. is the wavelength of the sound produced if it has a frequency of 20/s travel through air at a speed of 334m/s?
A.66.8m
B. 35.4m
C.30.0m
D. 16.7m


pa answer please asap ❤️
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