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Geography, 20.09.2020 09:01 roxanneee2145

A close friend moved to a planet in the Sirius system, about 8 lightyears away from Earth. When you call him on the phone, assuming he answers immediately, how long would it take you to hear him say "hello" from the time you placed the call? Explain your answers

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A close friend moved to a planet in the Sirius system, about 8 lightyears away from Earth. When you...
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