Apulsar is a rapidly rotating neutron star. the crab nebula pulsar in the constellation taurus has a period of 33.5\times 10^{-3}~\text{s}33.5×10 −3 s, radius 10.0 km, and mass 2.8\times 10^{30}~\text{kg}2.8×10 30 kg. the pulsar’s rotational period will increase over time due to the release of electromagnetic radiation, which doesn’t change its radius but reduces its rotational energy. what is the angular momentum of the pulsar?

Explanation:

The angular momentum of the pulsar is given by:

where

is the mass of the pulsar

is the radius

is the angular speed

Given the period of the pulsar, , the angular speed is given by

And so, the angular momentum is

absorption lines are where light has been absorbed by the atom thus you see a dip in the spectrum whereas.

emission spectra have spikes in the spectra due to atoms releasing photons at those wavelengths.

explanation:

would be false hope this out