What causes an approaching sound to be perceived as a higher pitch than the actual sound? a
the sound wave is compressed, decreasing the frequency of the wave
b
the sound wave is stretched out, decreasing the frequency of the wave
c
the sound wave is compressed, increasing the frequency of the wave

first thing first of the answer is with technology. second thing second thing is that the big bang theory did not happened u see they say it did but what they dont realize is that like dinasures are still a round they might deny it but they and look at these 12 foot human skelteons they find lets see didnt the bible say something about giants. hope this peace.

the components of a vector are the parts of the vectors that are to each other.

b perpendicular