A space probe on the surface of Mars sends a radio signal back to the Earth, a distance of 8.48 107 km. Radio waves travel at the speed of light…

A space probe on the surface of Mars sends a radio signal back to the Earth, a distance of 8.48 107 km. Radio waves travel at the speed of light (3.00 108 m/s). How many seconds does it take for the signal to reach the Earth?