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Drupady [299]
2 years ago
10

A spectrograph helps astronomers to determine:

Physics
1 answer:
Bezzdna [24]2 years ago
8 0

Answer:

I may be wrong sir/ma’am, but I believe it’s 1. Surface temperatures. 3.radio signals from space. And 4. Distance of stars.

Explanation:

sorry y’all:(

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