Neutrons in place of electrons in our model of electron gas

Reference no: EM13668310

The neutrons in a neutron star (Chapter 44 in the textbook) can be treated as a Fermi gas by neutrons in place of the electrons in our model of an electron gas.

Decide the Fermi energy for a neutron star of radius 20 km and mass 2.5 times that of our Sun. Suppose that the star is made entirely of neutrons and is of uniform density. Express as MeV

Reference no: EM13668310

Questions Cloud

How much work is done by force of gravity and by the spring : A 263 g block is dropped onto a vertical spring with force constant k = 2.52 N/cm. The block sticks to the spring and the spring compresses 11.8 cm before coming momentarily to rest. While the spring is being compressed, how much work is done (a) by ..

Block is pressed against a spring of force constant : A 200 g block is pressed against a spring of force constant 1.4 k N/m until the block compresses the spring 10 cm, the spring rests at the bottom of a ramp inclined at 60 degrees to the horizontal.

A bicycle tire with a fixed volume : A bicycle tire with a fixed volume of 0.25 liters and at constant temperature of 296K is pumped up so that its pressure changes from 20 psi to 37 psi. How many moles and how many air molecules have been added? (Suppose molecular mass of air to be 28u..

Otherwise essentially opaque to the incoming waves : Microwaves of wavelength 5.40 cm enter a long, narrow window in a building that is otherwise essentially opaque to the incoming waves. If the window is 34.5 cm wide, what is the distance from the central maximum to the first-order minimum along a wal..

Neutrons in place of electrons in our model of electron gas : The neutrons in a neutron star (Chapter 44 in the textbook) can be treated as a Fermi gas by neutrons in place of the electrons in our model of an electron gas.

Effective force constant k of the group of the bungee cords : A pot containing a plant, weighing 10 N is hung from ceiling with a group of bungee cords. If pulled down and released, the pot oscillates vertically by period T= 5s. What is the effective force constant k (in N/m) of the group of the bungee cords?

Distant moon imaginarius has half the diameter of the earth : The distant moon imaginarius has half the diameter of the earth. The free-fall acceleration on the imaginarius is a= 4 m/s^2. What is the ratio of the average mass density of imaginarius to that of earth, Q= p (imaginarius) / p (earth)?

Radar is to coat the plane by an antireflective polymer : A possible means for making an airplane invisible to radar is to coat the plane by an antireflective polymer. If radar waves have a wavelength of 3.10 cm and the index of refraction of the polymer is n = 1.70, how thick would you make the coating? (S..

What is the dissimilarity in the elapsed time son two clocks : A spacecraft flies away from the earth with a speed of 4.90×106 {\rm m/s} relative to the earth and then returns at the same speed. The spacecraft carries an atomic clock that has been carefully synchronized by an identical clock that remains at rest..

User Account

All Pages