EP COSMIC PERSPECTIVE-MOD.MASTERING
EP COSMIC PERSPECTIVE-MOD.MASTERING
9th Edition
ISBN: 9780137453481
Author: Bennett
Publisher: SAVVAS L
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Chapter 20, Problem 34EAP

Choose the best answer to each of the following. Explain your reasoning with one or more complete sentences.

35. If you observed the redshifts of galaxies at a given distance to he twice as large as they are now, then you would determine a value for Hubble’s constant that was (a) twice as large as its current value. (b) equal to its current value. (C) half its current value.

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Use the following information to answer the next question. Two mirrors meet an angle, a, of 105°. A ray of light is incident upon mirror A at an angle, i, of 42°. The ray of light reflects off mirror B and then enters water, as shown below: Incident ray at A Note: This diagram is not to scale. a Air (n = 1.00) Water (n = 1.34) 1) Determine the angle of refraction of the ray of light in the water. B
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