From Space
How long will it take for a radio wave sent from space satellite circulating Mars to reach the Earth?
If the planet Mars is about 56 million kilometers from Earth, how long would it take for a radio wave sent from space satellite circling Mars to reach Earth? Assume that radio waves travel at the speed of light.
The calculation will look like this:
56 x 10^9 m/ 3.00 x 10^8 m/s = 186.66 s. If you round it to the right number of sig-figs it will be 1.9 x 10^2 s
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