Chemistry

Chemistry, 23.08.2021 23:20, viper1325

A radar signal is sent into space and travels at a speed of 300,000 km/s. It takes 20 seconds for the signal to return to Earth. What is the velocity of the radar signal?

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20 s

300,000 km/s

300

1

answer

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A radar signal is sent into space and travels at a speed of 300,000 km/s. It takes 20 seconds for th...

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