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Posted by on Tuesday, April 2, 2013 at 1:23pm.

One way to determine the distance to the moon is to bounce a laser beam off a mirror on its surface. How far away is the moon if it takes 2.56 seconds for the laser to "echo" off the moon?

  • Physics - , Tuesday, April 2, 2013 at 2:01pm

    s=ct/2=3•10⁸•2.56/2=3.84•10⁸ m

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