Physics, 16.10.2021 04:50, kthe41261

What does an astronomer need to understand the fundamentals of to be able to calculate the age of the universe? Group of answer choices

propulsion physics (e. g., explosions)

how gravity is related to mass

how matter decays over time

the nature of visible light

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What does an astronomer need to understand the fundamentals of to be able to calculate the age of th...