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mixas84 [53]
3 years ago
8

WILL MAKE YOU BRAINLIEST PLEASE ANSWER THIS!!!!!

Physics
2 answers:
Alex_Xolod [135]3 years ago
5 0

Answer:

B) Doppler effect

Explanation:

Scientists use the Doppler effect to determine motion of objects in the universe.

Anton [14]3 years ago
3 0

Answer:

B) Doppler effect

Explanation:

Think about the tools scientists use to collect evidence.

Here is proof that my answer is correct:

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