Physics, 21.10.2019 15:20 dayjionneam
How does light travel? select one: a. light only travels in a vacuum and travels faster when the sound source is moving. b. light only travels in a medium and light travels faster when a sound source is stationary. c. light can only travel in a vacuum and the speed varies depending on whether the source is moving or stationary. d. light can travel in the air or a vacuum and the speed is constant whether the light source is stationary or moving.
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