If we transmitted radio signals to Mercury when it was closest to Earth and waited to hear the radar echo, how long would we wait?
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If we transmitted radio signals to Mercury when it was closest to Earth and waited to hear the radar echo, how long would we wait?
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- Mars has the largest volcanoes in the solar system. (T/F)Not including technology and instruments, give 2 reasons why our knowledge of the solar system has increased considerably in the past few years.When Mars is 90 million km (9 x 10^10 m) from Earth, a) How long would it take for a radio wave from a video camera mounted on the back of a Mars Rover to tell ground control on earth that the Rover is about to go over a cliff? b) How long would it take for a radio signal from Earth to reach the Rover saying "STOP". c) Why do our Mars Rovers have to be "intelligent" enough to figure out how to deal with obstacles themselves?
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