Under some circumstances, a star can collapse into an extremely dense object made mostly of neutrons and called a neutron star. the density of a neutron star is roughly 1014 times as great as that of ordinary solid matter. suppose we represent the star as a uniform, solid, rigid sphere, both before and after the collapse. the star's initial radius was 7.0x10^5 km (comparable to our sun); its final radius is 16 km .if the original star rotated once in 35 days, find the angular speed of the neutron star.

The angular speed of the neutron star is

Solution:

As per the question:

Initial radius of the star, r =

Final Radius, r' = 16 km

Period of rotation of the star, T = 35 days =

Now,

To calculate the angular speed of the neutron star:

We use the principle of conservation of angular momentum:

where

I = Moment of inertia

c) up

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what experimental evidence led scientists to change from the previous model to this one?

a few of the positive particles aimed at a gold foil seemed to bounce back.

the colors of light emitted from heated atoms had very specific energies.

experiments with water vapor showed that elements combine in specific proportions.

cathode rays were bent in the same way whenever a magnet was brought near them.