Problem: The speed of light in a vacuum is 2.998 x 10 8 m/s. (a) What is its speed in kilometers per hour (km/h)? (b) What is its speed in miles per minute (mi/min)? 

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The speed of light in a vacuum is 2.998 x 10 8 m/s. 

(a) What is its speed in kilometers per hour (km/h)? 

(b) What is its speed in miles per minute (mi/min)? 


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