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
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
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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