Astronomy
Astronomy
1st Edition
ISBN: 9781938168284
Author: Andrew Fraknoi; David Morrison; Sidney C. Wolff
Publisher: OpenStax
bartleby

Concept explainers

Textbook Question
Book Icon
Chapter 29, Problem 1E

What are the basic observations about the universe that any theory of cosmology must explain?

Expert Solution & Answer
Check Mark
To determine

The basic universe observations that any cosmology theory must explain.

Answer to Problem 1E

The basic universe observations that any cosmology theory must explainare:

1) Universe expansion.

2) CMBR-Cosmic microwave Background Radiation.

Explanation of Solution

Introduction:

Cosmology is one of the studies which is concerned about the evolution and origin of the Universe. It is one of the branches of astronomy which deals with the eventual fate of the Universe. The Big Bang theory is the modern form of Cosmology which contains particle physics and observational astronomy.

Cosmology is the study which basically deals with the evolution and organization of the Universe.

The theory explains about the universe expansion and CMBR-Cosmic microwave Background Radiation.

Cosmic microwave Background Radiation (CMBR) is the radiation which spreads over the universe and had happened from the beginning of the universe. It is believed that, this radiation originated because of the Big Bang or the birth of the Universe.

The basic universe observations that any cosmology theory must explain are:

  1. Universe expansion- It was observed by Doppler who stated that, the light arriving from the farther galaxies are red shifted. So, it is possible only if the galaxy is moving far away from the eye of the observer. Hence, the universe expansion is happening.
  2. CMBR-Cosmic microwave Background Radiation- During the birth of the Universe, the radiation was produced and it had spread everywhere in the universe which caused a small amount of average temperature in the universe which could be more or less 2.73 K which falls like microwave radiation.

Conclusion:

Hence, the basic universe observations that any cosmology theory must explain are:

1) Universe expansion.

2) CMBR-Cosmic microwave Background Radiation.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
! Required information Two chloride ions and two sodium ions are in water, the "effective charge" on the chloride ions (CI¯) is −2.00 × 10-21 C and that of the sodium ions (Na+) is +2.00 x 10-21 C. (The effective charge is a way to account for the partial shielding due to nearby water molecules.) Assume that all four ions are coplanar. CT Na+ Na+ 30.0° 45.0% с сг L. where a = 0.300 nm, b = 0.710 nm, and c = 0.620 nm. What is the direction of electric force on the chloride ion in the lower right-hand corner in the diagram? Enter the angle in degrees where positive indicates above the negative x-axis and negative indicates below the positive x-axis.
A pendulum has a 0.4-m-long cord and is given a tangential velocity of 0.2 m/s toward the vertical from a position 0 = 0.3 rad. Part A Determine the equation which describes the angular motion. Express your answer in terms of the variable t. Express coefficients in radians to three significant figures. ΜΕ ΑΣΦ vec (t)=0.3 cos (4.95t) + 0.101 sin (4.95t) Submit Previous Answers Request Answer × Incorrect; Try Again; 6 attempts remaining
Part A ■Review The uniform 150-lb stone (rectangular block) is being turned over on its side by pulling the vertical cable slowly upward until the stone begins to tip. (Figure 1) If it then falls freely (T = 0) from an essentially balanced at-rest position, determine the speed at which the corner A strikes the pad at B. The stone does not slip at its corner C as it falls. Suppose that height of the stone is L = 1.2 ft. Express your answer to three significant figures and include the appropriate units. ? ft VA 10.76 S Submit Previous Answers Request Answer × Incorrect; Try Again; 6 attempts remaining

Chapter 29 Solutions

Astronomy

Knowledge Booster
Background pattern image
Physics
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Text book image
Astronomy
Physics
ISBN:9781938168284
Author:Andrew Fraknoi; David Morrison; Sidney C. Wolff
Publisher:OpenStax
Text book image
Foundations of Astronomy (MindTap Course List)
Physics
ISBN:9781337399920
Author:Michael A. Seeds, Dana Backman
Publisher:Cengage Learning
Text book image
Stars and Galaxies (MindTap Course List)
Physics
ISBN:9781337399944
Author:Michael A. Seeds
Publisher:Cengage Learning
Text book image
Horizons: Exploring the Universe (MindTap Course ...
Physics
ISBN:9781305960961
Author:Michael A. Seeds, Dana Backman
Publisher:Cengage Learning
Text book image
Inquiry into Physics
Physics
ISBN:9781337515863
Author:Ostdiek
Publisher:Cengage
Text book image
The Solar System
Physics
ISBN:9781337672252
Author:The Solar System
Publisher:Cengage