The best place to search for black holes is in a region of space that (a) is dark and empty; (b) has recently lost some stars; (c) has strong X-ray emission; (d) is cooler than its surroundings

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 is dark matter ?

A: A type of matter hypothesized to account for a large type of mass in the universe it's  the dark…

Q: What type of explosion occurs when a black hole is born? Group of answer choices Gamma-ray Burst…

A:

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: Heavier elements like carbon, nitrogen and iron are spread out into space mainly through a.…

A: Some 14 billion years ago, a massive explosion occurred which is called the big bang. It created the…

Q: Although visible light cannot escape from a black hole, high- energy radiation, like gamma rays,…

A: Black holes are formed when massive stars collapse under its own gravity. The gravity of a black…

Q: Is the event horizon of a black hole the actual physical surface of the object?

A:

Q: Calculate the size to which the Sun should shrink to become a blackhole.

A: The limit to which an object can shrink without undergoing gravitational collapse is called…

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: What observation in astronomy, made AFTER the discovery of quasars, was a big help to astronomers in…

A: A quasar is an enormous object same like star. It also shines very brightly. It sends out radio…

Q: If the inner accretion disk around a black hole has a temperature of 1,000,000 K, at what wavelength…

A: Black holes are regions of large gravitational force in spacetime. The gravitational force is so…

Q: Is there a way to quantify Dark Matter?

A: Required : Is there a way to quantify Dark Matter.

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: Assume a neutron star has a mass of about 1.2 times the mass of the Sun and a radius of 7…

A: Given: Mass of neutron star = 1.2 times mass of sun. Radius of neutron star = 7 km. Diameter of…

Q: f a star is to eventually form a stellar black hole at any point in its life cycle, what must…

A: a star spends most of its lifetime as a main-sequence star. when it consumes all of its hydrogen…

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: What exactly is dark matter?

A: Particles that do not absorb, reflect, or emit light, hence cannot be detected by electromagnetic…

Q: Are there different types of black holes?

A: Since you have posted multiple questions, we will provide the solution only to the first question as…

Q: Which of the following did NOT happen during the first few minutes after the Big Bang? matter and…

A: Solution: Given: Which of the following did NOT happen during the first few minutes after the Big…

Q: Most stars exist as a     binary system     fission reactor     quasar…

A:

Q: Planets in the habitable zone of their stars: O are so far from their stars that it is very…

A:

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: Falling into Gargantua part I: Why does Gargantua appear the way it does? Because it has…

A: Part I Introduction: An event horizon is a boundary beyond which events cannot affect an observer. 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…

Q: What is dark matter? (200 words)

A: Answer:Dark matter is a form of matter accounting 85% of the matter in the universe and about a…