Answer:
The answer is the 3rd option!
Answer:
The answer
Explanation:
Thinking together, Better friendship, Makes teacher happy.
Answer: 0.392 m/s
Explanation:
The Doppler shift equation is:

Where:
is the actual frequency of the sound wave
is the "observed" frequency
is the speed of sound
is the velocity of the observer, which is stationary
is the velocity of the source, which are the red blood cells
Isolating
:


Finally:

Definitely ball and basket