Physics
Physics, 28.09.2019 03:30, pandadude123

Aspinning neutron star that appears to give off radio wave pulses is called a

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Biology, 27.06.2019 14:50, nana54muller
1.) the difference in the brightness of two stars with the same surface temperature is attributable to their colors densities ages sizes 2.) most responsible for the formation of a star is force. electromagnetic gravitational interstellar nuclear 3.)which main-sequence stars are the most massive? yellow orange red blue 4.) a spinning neutron star that appears to give off radio wave pulses is called a supernova white dwarf pulsar black hole 5.) greater redshifts in the spectra of galaxies indicate faster speeds lower temperatures slower speeds higher temperatures
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Physics, 16.10.2019 01:30, bankskry
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 9.0×105 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.
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Physics, 07.11.2019 01:31, moinhajra
Astar with the mass (m=2.0×1030kg) and size (r=3.5×108m) of our sun rotates once every 30.0 days. after undergoing gravitational collapse, the star forms a pulsar that is observed by astronomers to emit radio pulses every 0.200 s . by treating the neutron star as a solid sphere, deduce its radius.
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Physics, 07.11.2019 02:31, AmbitiousAndProud
During most of its lifetime, s star maintains an equilibrium size in which the inward force of gravity on each atom is balanced by an outward pressure force due to the heat of the nuclear reactions in the core. but after all the hydrogen fuel is consumed by the nuclear fusion, the pressure force drops and the star undergoes a gravitational collapse until it becomes a neutron star. in a neutron star, the electrons and protons of the atoms are squeezed together by gravity until they fuse into neutrons. neutron stars spin very rapidly and emit intense pulses of radio and light waves, one pulse per rotation. these pulsing stars were discovered in the 1960's and are called pulsars.a) a star with the mass (m=2.0x10^30 kg) and size (r=7.0x10^8 m) of our sun rotates once every 30 days. after undergoing gravitational collapse, the star forms a pulsar that is observed by astronomers to emit radio pulses every 0.10 s. by treating the neutron star as a solid sphere, deduce its radius.b) what is the speed of a point on the equator of the neutron star? your answer will be somewhat too large because a star cannot be accurately modeled as a solid sphere. even so, you will be able to show that a star, whose mass is 10^6 larger than the earth's, can be compressed by gravitational forces to a size smaller than a typical state in the united states!
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