D FOUR years old hope this helps
mark brainliest please
Answer:
You need to use charts or a calculator to get 56%
Explanation:
Answer:
Doppler effect, the apparent difference between the frequency at which sound or light waves leave a source and that at which they reach an observer, caused by relative motion of the observer and the wave source. This phenomenon is used in astronomical measurements, in Mössbauer effect studies, and in radar and modern navigation.
Explanation:
Answer:
just guys
Explanation:
and if not i need how old you are sorry just trying to be safe