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the speed of light is 300 thousand kilometres a second, or 300 million metres a second. which means it would go around the world 7.5 times in a single second. a light year is the distance that light travels in one year, which is 9.5 trillion kilometres. light is gamma rays, and gamma rays are electromagnetic waves that occur after either alpha or beta decay.
Wiki User
∙ 13y ago
Wiki User
∙ 9y agoThe speed at which lightning strikes is the speed at which electrical energy travels. That is the speed of light. So one can say that the lightning's speed is 3*10^8 meters/second.
Lightning is usually a mess of electrons traveling. They usually travel much less than the speed of light. The light travels at 3(10^10) cm/s, but the charges themselves travel more slowly.
Wiki User
∙ 9y agoThe speed at which lightning strikes is the speed at which electrical energy travels. That is the speed of light. So one can say that the lightning's speed is 3*10^8 meters/second.
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