21st Century Astronomy
21st Century Astronomy
6th Edition
ISBN: 9780393428063
Author: Kay
Publisher: NORTON
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Chapter 22, Problem 33QP

(a)

To determine

The reason for the present of no data points on the right side of the graph.

(b)

To determine

The models which are excluded by the data.

(c)

To determine

How far back in dime do the data go.

(d)

To determine

The age of universe in fraction

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Question A7 State three pieces of evidence that support the idea that the Universe began in a hot Big Bang, and explain how each piece of evidence supports the hot Big Bang model. Describe the ob- servational evidence that supports the idea that the Universe is pervaded by Dark Energy, and explain why each piece of evidence you cite supports the Dark Energy model.
How does the age of the universe relate to the Hubble constant?   a. The smaller the constant, the older the universe.   b. The larger the constant, the older the universe.   c. The Hubble constant is the age of the universe.   d. The Hubble constant is the square of the universe.   e. It is impossible to tell the age of the universe from the Hubble constant.
Hubble's First Attempt. Edwin Hubble's first attempt to measure the universe's expansion rate was flawed because the standard candles he was using were not properly calibrated. Look at (Figure 1)  a.Estimate the value of Ho corresponding to the solid line in the figure. Express your answer kilometers per second per million light-years to two significant figures. b.What is the approximate age of the universe indicated by that erroneous value of Ho? Express your answer in years to one significant figure.
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