The speed of light is 3.0×10⁵ km/s, and it takes 1.3 seconds for light to travel from the Moon to Earth. Based on this information, what is the distance from the Earth to the Moon? A) 390,000 km B) 230,000 km C) 3.9 km D) 2.3 km

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Quizplus · Accepted Answer

The distance can be calculated using the formula distance = speed × time. Given the speed of light is 3.0×10^8 m/s (or 300,000 km/s) and the time is 1.3 seconds, the distance is 300,000 km/s × 1.3 s = 390,000 km.

The Speed of Light Is 3