Conceptual Physical Science Explorations
Conceptual Physical Science Explorations
2nd Edition
ISBN: 9780321567918
Author: Paul G. Hewitt, Leslie A. Hewitt, John A Suchocki
Publisher: Addison Wesley
Question
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Chapter 34, Problem 8RAT
To determine

The correct option for the statement “Dark matter is”.

Expert Solution & Answer
Check Mark

Answer to Problem 8RAT

The correct option for the statement “Dark matter is” is option (a).

Explanation of Solution

Around 85% mass of our universe is made up of a material that cannot be observed directly by the scientists and is known as dark matter. The break up for this composition is 5% ordinary matter and energy, 27% dark matter, and 68% of a form of energy known as Dark energy.

Dark matter is named dark because of its ability to not react with electromagnetic radiations, which means neither it can consume light, nor it can transmit light and that’s why it is hard to detect.

Conclusion:

Therefore, the correct option for the statement “Dark matter is” is option (a).

Chapter 34 Solutions

Conceptual Physical Science Explorations

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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