February 23, 2017

Homework Help: science

Posted by Anonymous on Saturday, February 4, 2012 at 11:40pm.

A space probe of the surface of Mars sends a radio signal back to the Earth, a distance of 3 x 1010 km. Radio waves travel at the speed of light (3.00 x 108 m/s).
How far away is the space probe?
How many seconds does it take for the signal to reach the Earth?
How many hours is this?

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