Light travels at a speed of 3.00*10^10 cm/s. What is the speed of light in kilometers/hour?
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Tushar Chandra
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The speed of light in cm/s is `3.00*10^10` cm/s.
1 km = `10^5` cm and 1 h = 3600 s
In the units km/h, `3.00*10^10` cm/s = `3.00*10^10*(3600/10^5)` = `10800*10^5` = `1.08*10^9` km/h
In the units km/h, `3*10^10` cm/s is `1.08*10^9` km/h
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