Pick the correct answer. The waves cause the particles to vibrate A. slower than the sound source
B. at the same rate as the sound source
C. faster than the sound source

How to convert a density of 0.791g/cm3 to lb/ft3

Look at the spectrums of a star moving towards earth and a motionless star. which of these is a correct inference that can be draw from the observation of the two spectrums? (2 points) the spectrum of a motionless star is difficult to be viewed separately using oridinary telescopes. the spectrum of a motionless star is identical to the spectrum of a star which moves towards earth. the spectrum of a star shifts towards the red region when the star moves towards earth. the spectrum of a star shifts towards the blue region when the star moves towards earth.

Δu of , in kj/kg, as it isto k, (a)as a of , (b) at , (c) at .