Most stars exist as a binary system fission reactor quasar solitary entity black hole
Q: About how much of the universe is believed to be composed of dark energy? O 68-73% O 10-12% O 4-5% O…
A: We know very less about the universe . and said universe is expand . the maximum thing is unknown…
Q: The cosmic microwave background consists of: huge clouds of dark matter interspersed with equally…
A: Cosmic microwave background also known relic radiation. Cosmic microwave background is kind of…
Q: true or false A supernova core with a mass 2X that of the Sun produces a Black Hole
A: The Sun need to be concerning 20X additional large to finish its life as a black hole. Stars that…
Q: Stars begin their life cycle in a O black hole O nebula O nova O supernova
A: Answer:) star begin their life cycle in a nebula
Q: What type of explosion occurs when a black hole is born? Group of answer choices Gamma-ray Burst…
A:
Q: Neutron stars have a mass of ___________ a) 1.4 solar mass b) 14 solar masses c) 20 solar masses…
A: A
Q: Neutron stars are believed to be composed of solidnuclear matter, primarily neutrons
A: Given: Mass of neutron is m=1.675×10-24g. Radius of neutron is r=1.0×10-13cm.
Q: Nuclear fusion occurs during most of a star's life O True False
A: Answer :- ---------- True Nuclear fusion occurs during most of a stars life. Because It is the…
Q: Approximate the wavelength of the Hawking radiation from a black hole of mass 1.5×1030 kg 74 km 86…
A: To approximate wavelength of Hawking radiation from a black hole , we can use formula for…
Q: Is there a way to quantify Dark Matter?
A: Required : Is there a way to quantify Dark Matter ?
Q: A star is observed with a surface temperature of 3,000 K and a luminosity of 100,000 solar…
A: Given , Temperature = 3000 K Solar Luminosity = 100,000 Now , mass and luminosity are related by…
Q: Describe the evolution of a very low mass start a red dwarf, birth to death
A: Answer Low mass stars in their dating stages shed their outer layers transfer most of their mass…
Q: The number of stars in the Milky Way Galaxy is approximately
A: Number of stars in Milky way galaxy
Q: Determine the radius of a neutron star with a mass of 2 solar masses.
A: Neutron stars are formed when massive stars die. A star is formed due to the balance between…
Q: Why primordial black holes are thought to be extinct?
A: Black holes are formed due to the gravitational collapse of massive stars when the fusion inside the…
Q: Is there a way to quantify Dark Matter?
A: Required : Is there a way to quantify Dark Matter.
Q: a huge system of stats that has hundreds of millions to hundred of billions of stars that id…
A: In space hundreds of millions of stars Steller objects, dust , gas etc combine together a huge…
Q: What is the strongest piece of evidence for the existence of dark matter? O As stars die, they…
A: The strongest piece of evidence for the existence of the dark matter is "The orbital speed of the…
Q: Why haven't we detected any Primordial black holes?
A: Primordial black holes or PBH are black holes that formed soon after the birth of the universe. The…
Q: the binary isomorphous systems
A: A binary isomorphous system is a type of phase diagram that represents the equilibrium relationship…
Q: What type of galaxy does this picture represent? O Elliptical O Irregular O Spiral
A: The galaxy of the shape of an ellipse is known as an elliptical galaxy.
Q: If you weigh 675 N on the earth, what would be your weight on the surface of a neutron star that has…
A: weight = 675 N msun = 1.99 x 1030 kg G = 6.67×10−11 N⋅m2 /kg2 g = 9.8 m/s2 d=23.0 km r = 11.5 km =…
Q: Dark matter experiments are built underground to avoid detecting which type of particle? Group of…
A: In order to reduce the noise level signals caused by Cosmic Rays at Earth's surface, dark matter…
Q: About what percentage of the universe is believed to be composed of normal matter? O 5% O > 22% O…
A: 68% of the matter is dark energy. 27% of the matter is dark matter. Rest less or equal to 5% is…
Q: Hubble's Law Constant provides the following information about the observable universe: galaxies…
A: Hubble's law constant, often denoted as H₀ provides an estimate of the current rate of expansion of…
Q: What kinds of objects lie in the halo of a spiral galaxy?
A: Given :- Spiral galaxy and what kinds of objects lie in the halo of it.
Q: What is the mechanism for the energy output of quasars?
A: Quasars are high luminosity objects in the galaxy, having very high masses (ranging from millions to…
Q: There exists an element visible in the spectrum of galaxies that shows the following spectra when…
A: Introduction: The Doppler effect refers to the apparent shift in the wavelength of a wave when there…
Q: Calculate the redshift caused by a neutron star with a radius of 11 km and mass of 5.2 x 1030 kg.
A: As per general relativity when a photon leaves a gravitational well its wavelength will increase…
Q: Why do you expect neutron stars to spin rapidly?
A: Neutron stars are formed when stars with 4 to 8 solar mass die. When such a star runs out of fuel…
Q: A giant structure with billions of stars and sometimes gas and dust is called a O galaxy O star…
A: Galaxy
Q: Sn1604 a supernova in the year 2000 the age then was 396 years calculate the speed of expansion of…
A: Sn1604 a supernova in the year 2000 the age then was 396 years.If Kepler’s supernova expanded ar…
Q: 21. Giant or Nebula Supergiant Stars Small or Medium- sized Star 22. Red Giant Star 23. 24. White…
A: 21 Pro star 23 Plantery nebula 22 Super nova 24 black hole
Q: What is the distance in light years (ly) to Alkaid? 12 ly 104 ly 55 ly 4 ly
A:
Q: Most of our universe is now thought to be made from Dark energy Dark matter Normal matter O…
A: Universe in which we live is made of different matters and energy. After the Hubble gave the theory…
Q: A star collapses onto a neutron star. If its original radius is 7x105 km, by what factor will its…
A:
Q: The redshift due to the Doppler effect is caused by sources of light obscured by interstellar dust.…
A: Doppler effect : The Doppler effect is observed whenever the source of wave is moving with respect…
Most stars exist as a
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binary system |
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fission reactor |
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quasar |
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solitary entity |
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black hole |
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