Hubble measured the velocity of the movement of galaxies by using . Hubble’s law states that galaxies located farthest from the center of the universe than those closest to the center.
Answer
Selection 1:
the Doppler effect
Selection 2:
are moving faster

Question

Hubble measured the velocity of the movement of galaxies by using . Hubble’s law states that galaxies located farthest from the center of the universe than those closest to the center.

Revolt · Accepted Answer

the Doppler effect; Selection 1: the Doppler effect; Selection 2: are moving faster

The Expanding Universe

Hubble measured the velocity of the movement of galaxies by using . Hubble’s law states that galaxies located farthest from the center of the universe than those closest to the center.

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