Question

Light travels 300,000,000 m/s, and one year has approximately 32,000,000 seconds. a light year is the distance light travels in one year. state the speed in km/s, using scientific notation

Answer 1

Answer:

A light-year is a unit of distance. It is the distance that light can travel in one year. Light moves at a velocity of about 300,000 kilometers (km) each second. So in one year, it can travel about 10 trillion km. More p recisely, one light-year is equal to 9,500,000,000,000 kilometers.

Explanation:

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Answer 2

300 000 000 m/s  in km/s

1000 m = 1km

300 000 000 m/s  = 3 * 10⁸ m/s =  3 * 10⁵ *10³ m/s

=  3 * 10⁵ *10³ m/s

= 3 * 10⁵ km/s

Speed = 3 * 10⁵ km/s