Mathematics, 11.11.2020 14:00, Jowell3858

The speed of light is 3.0 x 108 m/s. The Earth's circumference at the equator is 40,000 km. How long (in theory) would it take in seconds for a laser beam to travel around the equator?

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The speed of light is 3.0 x 108 m/s. The Earth's circumference at the equator is 40,000 km. How long...