If a quasar is moving away from us at v/c = 0.8, what is the measured redshift?

The measured redshift is z =2

Explanation:

Since the object is traveling near light speed, since v/c = 0.8, then we have to use a redshift formula for relativistic speeds.

Finding the redshift.

We can prepare the formula by dividing by lightspeed inside the square root to both numerator and denominator to get

Replacing the given information

Thus the measured redshift is z = 2.

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explanation:

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