Conceptual Physical Science Explorations
2nd Edition
ISBN: 9780321567918
Author: Paul G. Hewitt, Leslie A. Hewitt, John A Suchocki
Publisher: Addison Wesley
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Textbook Question
Chapter 34, Problem 1RAT
Scientists estimate the age of universe to be about
(a) 5000 years old.
(b) 1 billion years old.
(c) 14 billion years old.
(d) 42 billion years old.
Expert Solution & Answer
To determine
The correct option for the statement “Scientists estimate the age of the universe to be about”.
Answer to Problem 1RAT
The correct option for the statement “Scientists estimate the age of the universe to be about” is option (c).
Explanation of Solution
In the branch of physics cosmology, the time elapsed after the event of the big bang is considered as the age of the universe. These estimations are based on the studies performed by scientists over the course of time using studies of the microwave background radiation by the Planck spacecraft, the Wilkinson Microwave Anisotropy Probe.
The current estimation of the age of the universe is 14 billion years, with a narrowed uncertainty of 20 million years. Measurements of the cosmic background radiation give the cooling time of the universe since the Big Bang.
Conclusion:
Therefore, the correct option for the statement “Scientists estimate the age of the universe to be about” is option (c).
Chapter 34 Solutions
Conceptual Physical Science Explorations
Ch. 34 - Prob. 1RQCh. 34 - What is a Cepheid?Ch. 34 - Prob. 3RQCh. 34 - What type of galaxy is the Milky Way?Ch. 34 - Prob. 5RQCh. 34 - What is a starburst galaxy?Ch. 34 - Prob. 7RQCh. 34 - How many spiral galaxies are within the Local...Ch. 34 - Is the Local Group a relatively small or large...Ch. 34 - Prob. 10RQ
Ch. 34 - Prob. 11RQCh. 34 - Is the universe in space or is space in the...Ch. 34 - According to the cosmic background radiation, what...Ch. 34 - The universe is about 25 helium. From where did...Ch. 34 - Prob. 15RQCh. 34 - If we cant see dark matter, how do we know it is...Ch. 34 - Is dark matter found mostly within or just outside...Ch. 34 - Did Einstein first believe that the universe was...Ch. 34 - What was Einsteins cosmological constant?Ch. 34 - What is likely the major component of our...Ch. 34 - Rank the following in order of increasing size:...Ch. 34 - Rank the following galaxy types in order of...Ch. 34 - Rank the following in order of increasing energy...Ch. 34 - Rank the following in order of increasing distance...Ch. 34 - Rank the following in order of increasing...Ch. 34 - Are there galaxies other than the Milky Way that...Ch. 34 - Prob. 2TECh. 34 - Prob. 3TECh. 34 - Prob. 4TECh. 34 - Does the collision of two galaxies involve the...Ch. 34 - Prob. 6TECh. 34 - Prob. 7TECh. 34 - What is the difference between the universe and...Ch. 34 - Prob. 9TECh. 34 - Prob. 10TECh. 34 - Why should anyone care about how the universe is...Ch. 34 - Are astronomers able to point their telescopes in...Ch. 34 - If the initial universe remained hotter for a...Ch. 34 - No galaxy found so far is made of less than 25...Ch. 34 - A helium balloon here on Earth pops, releasing...Ch. 34 - Early astronomers such as Kepler and Newton...Ch. 34 - If dark matter is affected by gravity, might there...Ch. 34 - A police officer pulls you over speeding. He tells...Ch. 34 - Prob. 19TECh. 34 - If we cant even predict the weather, how can we...Ch. 34 - If you were to travel straight up from the core of...Ch. 34 - Prob. 2TSCh. 34 - Prob. 3TSCh. 34 - Scientists estimate the age of universe to be...Ch. 34 - Starburst galaxies (a) tend to be spiral. (b)...Ch. 34 - Prob. 3RATCh. 34 - Which of the following is not accepted evidence...Ch. 34 - Edwin Hubble is famous for (a) building the first...Ch. 34 - The average temperature of the universe right now...Ch. 34 - Prob. 7RATCh. 34 - Prob. 8RATCh. 34 - In a huge cloud ordinary and dark matter are...Ch. 34 - Prob. 10RAT
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