HELP!!
The amplitude of a compressional wave depends on the _____. (1 point)density of material in compressions and rarefactions
distance between crests and troughs
number of wavelengths that pass by a point each second
vibration of electric and magnetic parts

Question

HELP!! 
The amplitude of a compressional wave depends on the _____.  (1 point)density of material in compressions and rarefactions
distance between crests and troughs
number of wavelengths that pass by a point each second
vibration of electric and magnetic parts

anonymous · Answer

who ever answers it first.. ill give a medel. :)

anonymous · Answer

Density of material in compressions and rarefractions.

anonymous · Answer

ok Thanks :)

anonymous · Answer

Well, I take it you mean a wave in the air, like a sound wave (alternating compressions of air). Volume of a sound wave ( a type of compressional wave) is our perception of its amplitude, the amplitude is a measure in the intensity of the waves, or the amount of variation in air pressure. Our perception of pitch varies with the frequency, or how frequently the alternations in air pressure persist.