Physics, 08.08.2019 22:30, theyycraveenaee

In 1974, the arecibo radio telescope in puerto rico was used to transmit a signal to m13, a star cluster about 25,000 light-years away. how long will it take the message to reach m13, and how far has the message travelled so far (in light-years)?

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In 1974, the arecibo radio telescope in puerto rico was used to transmit a signal to m13, a star clu...