What is the speed of light if the distance from the Moon to the Earth is 384,000 km, it travels in 1.28 s?
| September 1, 2021 | education
To find the value of the speed of light, you must use the formula: Vc = L / t.
Constants and variables: L – distance from the Moon to the Earth (by condition we take L = 384000 km = 384 * 10 ^ 6 m); t – elapsed time (t = 1.28 s).
Calculation: Vc = L / t = 384 * 10 ^ 6 / 1.28 = 300 * 10 ^ 6 m / s.
Answer: The speed of light, according to the calculation, is 300 * 10 ^ 6 m / s.
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