The definition of horizon and flatness problem and the steps adopted to resolve them by the idea of inflation.

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Answer 1

Question

Chapter 26, Problem 1Q

To determine

The definition of horizon and flatness problem and the steps adopted to resolve them by the idea of inflation.

Expert Solution & Answer

Explanation of Solution

Introduction:

Horizon problem originates due to the observation of constant temperature of (CMBR) cosmic microwave background radiation. During the observation, it is found that the cosmic microwave radiation has nearly the same temperature in each direction, which is not possible.

Flatness problem is the cosmological problem, which describes that the density of the universe is close to the critical value of density, which is impossible and leads to the flatness problem.

Horizon problem originates due to the observation of the nearly constant temperature of the cosmic microwave background radiation. After the big bang, the radiation emitted is continuously traveling in the observable universe. Two points in the universe which are at very distant locations to each other, that is nearly a million light-years, cannot have the temperature of cosmic microwave background radiation similar to each other. This is because the radiation from the big bang cannot reach such a distant point in the space, so it leads to the horizon problem.

On the other hand, flatness problem arises due to the observation of density of the universe to be nearly equal to the critical density, which is considered impossible. After the billion light-years from the big bang, still the geometry of the universe resembles that of flat surface which is considered a problem in cosmology.

The solution to the horizon and the flatness problem is cosmic inflation which states that the universe is expanding after the big bang at an exponential rate in the initial inflationary period resulting in the isotropic nature of the universe observed today. This theory also states the fact that during the inflationary period the energy and mass were equally distributed resulting in constant temperature observed in the universe.

Conclusion:

Therefore, the cosmic inflation theory gives the solution to Horizon and Flatness problems.

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Students have asked these similar questions

The figure below shows, at left, a solid disk of radius R = 0.600 m and mass 75.0 kg. Tu Mounted directly to it and coaxial with it is a pulley with a much smaller mass and a radius of r = 0.230 m. The disk and pulley assembly are on a frictionless axle. A belt is wrapped around the pulley and connected to an electric motor as shown on the right. The turning motor gives the disk and pulley a clockwise angular acceleration of 1.67 rad/s². The tension T in the upper (taut) segment of the belt is 145 N. (a) What is the tension (in N) in the lower (slack) segment of the belt? N (b) What If? You replace the belt with a different one (one slightly longer and looser, but still tight enough that it does not sag). You again turn on the motor so that the disk accelerates clockwise. The upper segment of the belt once again has a tension of 145 N, but now the tension in the lower belt is exactly zero. What is the magnitude of the angular acceleration (in rad/s²)? rad/s²

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Answer 2

Question

Chapter 26, Problem 1Q

To determine

The definition of horizon and flatness problem and the steps adopted to resolve them by the idea of inflation.

Expert Solution & Answer

Explanation of Solution

Introduction:

Horizon problem originates due to the observation of constant temperature of (CMBR) cosmic microwave background radiation. During the observation, it is found that the cosmic microwave radiation has nearly the same temperature in each direction, which is not possible.

Flatness problem is the cosmological problem, which describes that the density of the universe is close to the critical value of density, which is impossible and leads to the flatness problem.

Horizon problem originates due to the observation of the nearly constant temperature of the cosmic microwave background radiation. After the big bang, the radiation emitted is continuously traveling in the observable universe. Two points in the universe which are at very distant locations to each other, that is nearly a million light-years, cannot have the temperature of cosmic microwave background radiation similar to each other. This is because the radiation from the big bang cannot reach such a distant point in the space, so it leads to the horizon problem.

On the other hand, flatness problem arises due to the observation of density of the universe to be nearly equal to the critical density, which is considered impossible. After the billion light-years from the big bang, still the geometry of the universe resembles that of flat surface which is considered a problem in cosmology.

The solution to the horizon and the flatness problem is cosmic inflation which states that the universe is expanding after the big bang at an exponential rate in the initial inflationary period resulting in the isotropic nature of the universe observed today. This theory also states the fact that during the inflationary period the energy and mass were equally distributed resulting in constant temperature observed in the universe.

Conclusion:

Therefore, the cosmic inflation theory gives the solution to Horizon and Flatness problems.

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Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 3

Question

Chapter 26, Problem 1Q

To determine

The definition of horizon and flatness problem and the steps adopted to resolve them by the idea of inflation.

Expert Solution & Answer

Explanation of Solution

Introduction:

Horizon problem originates due to the observation of constant temperature of (CMBR) cosmic microwave background radiation. During the observation, it is found that the cosmic microwave radiation has nearly the same temperature in each direction, which is not possible.

Flatness problem is the cosmological problem, which describes that the density of the universe is close to the critical value of density, which is impossible and leads to the flatness problem.

Horizon problem originates due to the observation of the nearly constant temperature of the cosmic microwave background radiation. After the big bang, the radiation emitted is continuously traveling in the observable universe. Two points in the universe which are at very distant locations to each other, that is nearly a million light-years, cannot have the temperature of cosmic microwave background radiation similar to each other. This is because the radiation from the big bang cannot reach such a distant point in the space, so it leads to the horizon problem.

On the other hand, flatness problem arises due to the observation of density of the universe to be nearly equal to the critical density, which is considered impossible. After the billion light-years from the big bang, still the geometry of the universe resembles that of flat surface which is considered a problem in cosmology.

The solution to the horizon and the flatness problem is cosmic inflation which states that the universe is expanding after the big bang at an exponential rate in the initial inflationary period resulting in the isotropic nature of the universe observed today. This theory also states the fact that during the inflationary period the energy and mass were equally distributed resulting in constant temperature observed in the universe.

Conclusion:

Therefore, the cosmic inflation theory gives the solution to Horizon and Flatness problems.

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Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 4

Question

Chapter 26, Problem 1Q

To determine

The definition of horizon and flatness problem and the steps adopted to resolve them by the idea of inflation.

Expert Solution & Answer

Explanation of Solution

Introduction:

Horizon problem originates due to the observation of constant temperature of (CMBR) cosmic microwave background radiation. During the observation, it is found that the cosmic microwave radiation has nearly the same temperature in each direction, which is not possible.

Flatness problem is the cosmological problem, which describes that the density of the universe is close to the critical value of density, which is impossible and leads to the flatness problem.

Horizon problem originates due to the observation of the nearly constant temperature of the cosmic microwave background radiation. After the big bang, the radiation emitted is continuously traveling in the observable universe. Two points in the universe which are at very distant locations to each other, that is nearly a million light-years, cannot have the temperature of cosmic microwave background radiation similar to each other. This is because the radiation from the big bang cannot reach such a distant point in the space, so it leads to the horizon problem.

On the other hand, flatness problem arises due to the observation of density of the universe to be nearly equal to the critical density, which is considered impossible. After the billion light-years from the big bang, still the geometry of the universe resembles that of flat surface which is considered a problem in cosmology.

The solution to the horizon and the flatness problem is cosmic inflation which states that the universe is expanding after the big bang at an exponential rate in the initial inflationary period resulting in the isotropic nature of the universe observed today. This theory also states the fact that during the inflationary period the energy and mass were equally distributed resulting in constant temperature observed in the universe.

Conclusion:

Therefore, the cosmic inflation theory gives the solution to Horizon and Flatness problems.

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!

Answer 5

Chapter 26, Problem 1Q

To determine

The definition of horizon and flatness problem and the steps adopted to resolve them by the idea of inflation.

Expert Solution & Answer

Explanation of Solution

Introduction:

Horizon problem originates due to the observation of constant temperature of (CMBR) cosmic microwave background radiation. During the observation, it is found that the cosmic microwave radiation has nearly the same temperature in each direction, which is not possible.

Flatness problem is the cosmological problem, which describes that the density of the universe is close to the critical value of density, which is impossible and leads to the flatness problem.

Horizon problem originates due to the observation of the nearly constant temperature of the cosmic microwave background radiation. After the big bang, the radiation emitted is continuously traveling in the observable universe. Two points in the universe which are at very distant locations to each other, that is nearly a million light-years, cannot have the temperature of cosmic microwave background radiation similar to each other. This is because the radiation from the big bang cannot reach such a distant point in the space, so it leads to the horizon problem.

On the other hand, flatness problem arises due to the observation of density of the universe to be nearly equal to the critical density, which is considered impossible. After the billion light-years from the big bang, still the geometry of the universe resembles that of flat surface which is considered a problem in cosmology.

The solution to the horizon and the flatness problem is cosmic inflation which states that the universe is expanding after the big bang at an exponential rate in the initial inflationary period resulting in the isotropic nature of the universe observed today. This theory also states the fact that during the inflationary period the energy and mass were equally distributed resulting in constant temperature observed in the universe.

Conclusion:

Therefore, the cosmic inflation theory gives the solution to Horizon and Flatness problems.

Answer 6

Chapter 26, Problem 1Q

To determine

The definition of horizon and flatness problem and the steps adopted to resolve them by the idea of inflation.

Expert Solution & Answer

Explanation of Solution

Introduction:

Horizon problem originates due to the observation of constant temperature of (CMBR) cosmic microwave background radiation. During the observation, it is found that the cosmic microwave radiation has nearly the same temperature in each direction, which is not possible.

Flatness problem is the cosmological problem, which describes that the density of the universe is close to the critical value of density, which is impossible and leads to the flatness problem.

Horizon problem originates due to the observation of the nearly constant temperature of the cosmic microwave background radiation. After the big bang, the radiation emitted is continuously traveling in the observable universe. Two points in the universe which are at very distant locations to each other, that is nearly a million light-years, cannot have the temperature of cosmic microwave background radiation similar to each other. This is because the radiation from the big bang cannot reach such a distant point in the space, so it leads to the horizon problem.

On the other hand, flatness problem arises due to the observation of density of the universe to be nearly equal to the critical density, which is considered impossible. After the billion light-years from the big bang, still the geometry of the universe resembles that of flat surface which is considered a problem in cosmology.

The solution to the horizon and the flatness problem is cosmic inflation which states that the universe is expanding after the big bang at an exponential rate in the initial inflationary period resulting in the isotropic nature of the universe observed today. This theory also states the fact that during the inflationary period the energy and mass were equally distributed resulting in constant temperature observed in the universe.

Conclusion:

Therefore, the cosmic inflation theory gives the solution to Horizon and Flatness problems.

Answer 7

Chapter 26, Problem 1Q

To determine

The definition of horizon and flatness problem and the steps adopted to resolve them by the idea of inflation.

Answer 8

Expert Solution & Answer

Explanation of Solution

Introduction:

Horizon problem originates due to the observation of constant temperature of (CMBR) cosmic microwave background radiation. During the observation, it is found that the cosmic microwave radiation has nearly the same temperature in each direction, which is not possible.

Flatness problem is the cosmological problem, which describes that the density of the universe is close to the critical value of density, which is impossible and leads to the flatness problem.

Horizon problem originates due to the observation of the nearly constant temperature of the cosmic microwave background radiation. After the big bang, the radiation emitted is continuously traveling in the observable universe. Two points in the universe which are at very distant locations to each other, that is nearly a million light-years, cannot have the temperature of cosmic microwave background radiation similar to each other. This is because the radiation from the big bang cannot reach such a distant point in the space, so it leads to the horizon problem.

On the other hand, flatness problem arises due to the observation of density of the universe to be nearly equal to the critical density, which is considered impossible. After the billion light-years from the big bang, still the geometry of the universe resembles that of flat surface which is considered a problem in cosmology.

The solution to the horizon and the flatness problem is cosmic inflation which states that the universe is expanding after the big bang at an exponential rate in the initial inflationary period resulting in the isotropic nature of the universe observed today. This theory also states the fact that during the inflationary period the energy and mass were equally distributed resulting in constant temperature observed in the universe.

Conclusion:

Therefore, the cosmic inflation theory gives the solution to Horizon and Flatness problems.