The reason for the well mixing of red dwarf interiors.

Question

Want to see more full solutions like this?

Answer 1

Question

Chapter 13, Problem 1RQ

To determine

The reason for the well mixing of red dwarf interiors.

Expert Solution & Answer

Answer to Problem 1RQ

The thoroughly mixing is due to the convection at the surface of the star.

Explanation of Solution

Red dwarf stars are main sequence stars which still have fuel inside the core in it and hence fusion reaction.

It has less surface temperature of around 2,000 K to 4,000 K. The red colour of the star defines its name and the red signifies the low surface temperature.

The convection process is still be there at the surface of this stars which leads to the thorough mixing of gases and other elements present in it.

Conclusion:

Therefore, the thoroughly mixing is due to the convection at the surface of the star.

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

ROTATIONAL DYNAMICS Question 01 A solid circular cylinder and a solid spherical ball of the same mass and radius are rolling together down the same inclined. Calculate the ratio of their kinetic energy. Assume pure rolling motion Question 02 A sphere and cylinder of the same mass and radius start from ret at the same point and more down the same plane inclined at 30° to the horizontal Which body gets the bottom first and what is its acceleration b) What angle of inclination of the plane is needed to give the slower body the same acceleration Question 03 i) Define the angular velocity of a rotating body and give its SI unit A car wheel has its angular velocity changing from 2rads to 30 rads seconds. If the radius of the wheel is 400mm. calculate ii) The angular acceleration iii) The tangential linear acceleration of a point on the rim of the wheel Question 04 in 20

Question B3 Consider the following FLRW spacetime: t2 ds² = -dt² + (dx² + dy²+ dz²), t2 where t is a constant. a) State whether this universe is spatially open, closed or flat. [2 marks] b) Determine the Hubble factor H(t), and represent it in a (roughly drawn) plot as a function of time t, starting at t = 0. [3 marks] c) Taking galaxy A to be located at (x, y, z) = (0,0,0), determine the proper distance to galaxy B located at (x, y, z) = (L, 0, 0). Determine the recessional velocity of galaxy B with respect to galaxy A. d) The Friedmann equations are 2 k 8πG а 4πG + a² (p+3p). 3 a 3 [5 marks] Use these equations to determine the energy density p(t) and the pressure p(t) for the FLRW spacetime specified at the top of the page. [5 marks] e) Given the result of question B3.d, state whether the FLRW universe in question is (i) radiation-dominated, (ii) matter-dominated, (iii) cosmological-constant-dominated, or (iv) none of the previous. Justify your answer. f) [5 marks] A conformally…

SECTION B Answer ONLY TWO questions in Section B [Expect to use one single-sided A4 page for each Section-B sub question.] Question B1 Consider the line element where w is a constant. ds²=-dt²+e2wt dx², a) Determine the components of the metric and of the inverse metric. [2 marks] b) Determine the Christoffel symbols. [See the Appendix of this document.] [10 marks] c) Write down the geodesic equations. [5 marks] d) Show that e2wt it is a constant of geodesic motion. [4 marks] e) Solve the geodesic equations for null geodesics. [4 marks]

Answer 2

Question

Chapter 13, Problem 1RQ

To determine

The reason for the well mixing of red dwarf interiors.

Expert Solution & Answer

Answer to Problem 1RQ

The thoroughly mixing is due to the convection at the surface of the star.

Explanation of Solution

Red dwarf stars are main sequence stars which still have fuel inside the core in it and hence fusion reaction.

It has less surface temperature of around 2,000 K to 4,000 K. The red colour of the star defines its name and the red signifies the low surface temperature.

The convection process is still be there at the surface of this stars which leads to the thorough mixing of gases and other elements present in it.

Conclusion:

Therefore, the thoroughly mixing is due to the convection at the surface of the star.

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 3

Question

Chapter 13, Problem 1RQ

To determine

The reason for the well mixing of red dwarf interiors.

Expert Solution & Answer

Answer to Problem 1RQ

The thoroughly mixing is due to the convection at the surface of the star.

Explanation of Solution

Red dwarf stars are main sequence stars which still have fuel inside the core in it and hence fusion reaction.

It has less surface temperature of around 2,000 K to 4,000 K. The red colour of the star defines its name and the red signifies the low surface temperature.

The convection process is still be there at the surface of this stars which leads to the thorough mixing of gases and other elements present in it.

Conclusion:

Therefore, the thoroughly mixing is due to the convection at the surface of the star.

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 4

Question

Chapter 13, Problem 1RQ

To determine

The reason for the well mixing of red dwarf interiors.

Expert Solution & Answer

Answer to Problem 1RQ

The thoroughly mixing is due to the convection at the surface of the star.

Explanation of Solution

Red dwarf stars are main sequence stars which still have fuel inside the core in it and hence fusion reaction.

It has less surface temperature of around 2,000 K to 4,000 K. The red colour of the star defines its name and the red signifies the low surface temperature.

The convection process is still be there at the surface of this stars which leads to the thorough mixing of gases and other elements present in it.

Conclusion:

Therefore, the thoroughly mixing is due to the convection at the surface of the star.

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 13, Problem 1RQ

To determine

The reason for the well mixing of red dwarf interiors.

Expert Solution & Answer

Answer to Problem 1RQ

The thoroughly mixing is due to the convection at the surface of the star.

Explanation of Solution

Red dwarf stars are main sequence stars which still have fuel inside the core in it and hence fusion reaction.

It has less surface temperature of around 2,000 K to 4,000 K. The red colour of the star defines its name and the red signifies the low surface temperature.

The convection process is still be there at the surface of this stars which leads to the thorough mixing of gases and other elements present in it.

Conclusion:

Therefore, the thoroughly mixing is due to the convection at the surface of the star.

Answer 6

Chapter 13, Problem 1RQ

To determine

The reason for the well mixing of red dwarf interiors.

Expert Solution & Answer

Answer to Problem 1RQ

The thoroughly mixing is due to the convection at the surface of the star.

Explanation of Solution

Red dwarf stars are main sequence stars which still have fuel inside the core in it and hence fusion reaction.

It has less surface temperature of around 2,000 K to 4,000 K. The red colour of the star defines its name and the red signifies the low surface temperature.

The convection process is still be there at the surface of this stars which leads to the thorough mixing of gases and other elements present in it.

Conclusion:

Therefore, the thoroughly mixing is due to the convection at the surface of the star.

Answer 7

Chapter 13, Problem 1RQ

To determine

The reason for the well mixing of red dwarf interiors.

Answer 8

Expert Solution & Answer

Answer to Problem 1RQ

The thoroughly mixing is due to the convection at the surface of the star.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Explanation of Solution

Red dwarf stars are main sequence stars which still have fuel inside the core in it and hence fusion reaction.

It has less surface temperature of around 2,000 K to 4,000 K. The red colour of the star defines its name and the red signifies the low surface temperature.

The convection process is still be there at the surface of this stars which leads to the thorough mixing of gases and other elements present in it.

Conclusion:

Therefore, the thoroughly mixing is due to the convection at the surface of the star.