Say you were at mission control on
Earth. You use radio waves to say "Hello" to an
astronaut...
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Physics, 08.12.2021 05:30 arisworlld
Say you were at mission control on
Earth. You use radio waves to say "Hello" to an
astronaut on Mars when Mars is 84,000,000
km from Earth. The astronaut hears your "Hello"
280 seconds after you spoke the word. How do
you explain this time lag?
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Answers: 2
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