Density I'm not sure
volume unchanged
mass unchanged
shape- water
Answer:
pls can you get a clearer image, then u can report back to me
the answer would be b. it`s half as great
The ideal concept for solving this question is based on the Doppler effect, for which it is indicated that the source's listening frequency changes as the distance and the relative speed between the receiver and the transmitter are also changed. However, if the relative velocity between the two objects is zero as in the particular case presented (since both travel at 75km / h) we have that there will be no change in frequency.
Therefore the frequency that I hear and that my sister would listen would be the same.
Are their any words that we can answer the question with?