Light Years: distance travelled by laser beam in 2 hours

G

Guest

Guest
Use the fact that the speed of light in a vacuum is about 3.00 108 m/s to determine how many kilometers a pulse from a laser beam travels in exactly 2 h.
 
Are you sure of that rate of speed? "3.00108" meters per second?

How far have you gotten? Where are you stuck?

Thank you.

Eliz.
 
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