Explanation Given that f 0 − f = 0.0987 f 0 The galaxy is moving away from the Earth. Write the expression for frequency. f = f 0 c − v c + v (I) Here, f is the frequency as measured by an observer moving towards the source, f 0 is the frequency of the light as seen in the source’s reference frame, v is the relative velocity of object, and c is the velocity of light. Solve equation (I). f f 0 = c − v c + v ( f f 0 ) 2 = c − v c + v ( c + v ) ( f f 0 ) 2 = c − v v [ 1 + ( f f 0 ) 2 ] = c [ 1 − ( f f 0 ) 2 ] (II) Solve the equation (II), for v

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Chapter 36, Problem 64P

To determine

The speed of the galaxy moving away from us.

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Chapter 36, Problem 63P

Chapter 36, Problem 65P

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Chapter 36 Solutions

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The speed of the galaxy moving away from us.

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Chapter 36 Solutions