d Astronomers define the redshift z of light from a receding astronomical object by the formula Z femit -fobs fobs Here femit is the frequency of the light measured in the frame in which the emitter is at rest and fobs the frequency observed in another frame in which the emitter moves directly away from the observer. = The most distant quasar reported as of 1991 has a redshift z 4.897. With what fraction of the speed of light is this quasar receding from us?

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Q: question 47. can u explain step by step

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A: Let us understand the problem carefully and will answer the question.

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A: As we know

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A: Here differentiation of product and chain formula of differentiation is used.

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A: The given sets are,

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A: See attached picture

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A: Answer               -6i - 6j + 6k Solution

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A: