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Physics, 14.07.2019 10:00 jamesjarrell67

Which describes einstein’s second postulate about the special theory of relativity? 1. the speed of light in a vacuum is constant, and nothing is faster than the speed of light. 2. the speed of light in a vacuum is constant, and some things are faster than the speed of light. 3. the speed of light in a vacuum fluctuates, but nothing is faster than the speed of light. 4. the speed of light in a vacuum fluctuates, and some things are faster than the speed of light.

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