Physics, 26.08.2021 15:50 ecarter8967

The nearest star, proxima Centauri is 4.0 × 10^13 km away. calculate the time it takes a light signal from the earth to the star? how many years will it take a spacecraft traveling with speed of 10^-4 c to reach proxima Centauri. (c = 3 × 10^8 m/s).

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The nearest star, proxima Centauri is 4.0 × 10^13 km away. calculate the time it takes a light signa...