3 years ago

The speed of light in a vacuum is 2.99x10^8 m/s. calculate its speed in miles per hour.

1 answer:

34kurt3 years ago

6 0

You'll never get the correct answer without the correct conversion factor. Note carefully that you have no decimal. It should be
1 km = 0.6214 miles 
1000 m = 1 km 
60 seconds = 1 minute 
60 minutes = 1 hour. 
2.998E8 m/s x (1 km/1000m) x (0.6214 miles/km) x (60 sec/min) x (60 min/hr) = ?

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