Q: How many kilometers can light travel in a second?

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The speed of light is 186,000 miles per second or 300,000 kilometers per second. It takes sunlight about 13 minutes to reach Mars. It takes about 81/2 minutes to reach Earth.

lenth of vains 137,000 km..and our blood travel in just 46 sec..

4,ooo (there are 1,000 kilometers in a meter)

As many as you want. But where do you find 640 volts RMS?

40,076,000,000 millimetres

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The speed of light in a vacuum is about 300,000 kilometers per second. So, in one second, light would travel 300,000 kilometers.

Approximately 300,000 Km/s

Light travels approximately 299,792 kilometers in one second. This is equivalent to 299.792 megameters or 0.299792 gigameters per second.

-Light travels at 299,792,458 meters per second.-There is 31,556,926 seconds in one year.-Light travels 9,460,528,412,464,108 meters in one year and after doing the math, light travels 9,460,528,412,464.108 kilometers in one year.

About 300,000 kilometers per second.

The speed of light is equal to 299792.458 kilometres per second. There are 180 seconds in one minute. Therefore, in three minutes, light will travel 299792.458 x 180 = 53962642.44 kilometres in three minutes.

The speed of light is 186,282 miles per second.

The distance from the Earth to the Sun is approximately 93 million miles (about 150 million kilometers). At the speed of light, it would take light 500 seconds to travel this distance. This is because light travels at a speed of about 186,282 miles per second or 299,792 kilometers per second.

Actually, the speed is 300,000 kilometers per second (one zero more than you put in the question). You can multiply that by 60 x 60 x 24, which is the number of seconds in a day.

One one year's time, light can travel 9.4605284 × 1012 kilometers.

less than a second if a mirror a second

It only takes sunlight about 8.3 minutes (0.138 hours) to travel the 150 million kilometers from the Sun to Earth, traveling at almost 300,000 kilometers per second.