28) How accretion disk surrounding the black hole helps in its detection?
Q: TRUE OR FALSE A Black Hole’s singularity has zero radius yet can accommodate infinite mass.
A: SOlution: Is black hole has zero singularity and yet capable of taking all the mass inside.
Q: Calculate the mass of black hole with a radius of 20 km.
A: For a blackhole, the radius of the event horizon or the point of no return is defined as the…
Q: Place the large black ball (black hole) in the center of the sheet. Experiment with different sized…
A:
Q: 2. What is the best way to stop being pulled into a black hole? a.) Fire rockets continuously. b.)…
A: Blackhole is an object which has an escape velocity equal to speed of light. this is the velocity…
Q: when seeing an object at large distance
A: Given as, Eα1at
Q: 3. Determine the Schwartzschild radius and the average density of a black hole formed by the…
A:
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: (a) Calculate the photon capture radius and the Schwarzschild radius of M87* (in AU). (b) Why was it…
A: Schwarzschild radius is given by the formulars=2GMc2G is the universal gravitation constant,…
Q: Why is a black hole invisible?
A: A black hole is a region in space where the pulling force of gravity is so strong that light is not…
Q: 15) Calculate the gravitational redshift caused by Sun on the photons coming from its surface.
A: As per general relativity when light moves away from a gravitational source its wavelength will…
Q: 27) Calculate the time it would take for 5 solar mass black to radiate its energy.
A: When stars with mass greater than 3 or 4 solar mass die the gravitational collapse is so large that…
Q: How many neutrons are in a 2.8-solar-mass neutron star? Assume the star’s mass is entirely neutrons…
A:
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: An x-ray photon escapes the accretion disk of a black hole of 5 solar masses and a radius of 14.7…
A: As per general relativity due to space-time curvature, the frequency of the photon will reduce as it…
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: How can we “observe” a black hole if neither matter nor radiation can escape from it?
A: Given: Black hole
Q: Calculate the mass of a black hole at room temperature.
A: Black holes are regions of space-time where the gravity is very large that nothing, not even light…
Q: How do black holes form?
A:
Q: a) Calculate the Schwarzschild radius of a person of mass 80 kg. Compare this to the size of a…
A:
Q: What would happen if you were to jump feet first into a black hole?
A: If we jumped in feet first into a blackhole, we would be torn into pieces via the process of…
Q: The first gravity wave was detected by LIGO in Sept 2015. What caused this gravity wave? Group of…
A: LIGO is Laser Interferometer Gravitational-wave Observatory. It is the world's largest gravitational…
Q: How can a black hole be massive but not big?
A: A blackhole is a region in space which have an extremely high gravitational field so that even light…
Q: How can we calculate Schwarzschild radius?
A: The Schwarzschild radius is the radius of the object which is obtained by compressing the mass or…
Q: the Sun were to become a black hole at what distance will the escape veloc
A: The distance at which the escape velocity of a black hole becomes the speed of light is called the…
Q: 1- can we obtain energy from a Votating black hole ?
A: Einstein's theory of general relativity , the theory that connects space, time, and gravity predicts…
Q: Explain how pulsars (highly compact objects that periodically emit radiation) are formed and write…
A: The pulsars are commonly known as rotating neutron stars. A neutron star is the last stage of a…
Q: (Astronomy) Schwarzschild Radius. Part A: Find the Schwarzschild radius for the least massive…
A: please see the next step for solution
Q: What would you have to do to make earth a black hole ?
A: Black holes are objects in space from which even light can not escape. What makes the black hole so…
Q: If the scattering material is purely ionised hydrogen, what is the Eddington Luminosity for a…
A: For a scattering material of mass M that is consisted of purely ionized hydrogen, the Eddington…
Q: You discover by dropping particles into it that the Event Horizon (Schwartzschild Radius) of a black…
A: Data Given , Schwarzschild radius of black hole ( rs ) = 171 km = 171 × 103 m We have to find the…
Q: Where do the γ bursts come from?
A: Gamma-ray bursts are one of the top unsolved mysteries in astrophysics, alongside such burning…
Q: Which of the following can a black hole not "eat" or consume? another black hole O a planet O black…
A: A black hole in simple terms is a region of very very strong gravity which is unimaginable. It is…
Q: What does a black hole sound like?
A: Black hole is a heavenly body.
Q: Explain what is meant by the Schwarzschild radius of a black hole. Using a Newtonian approx-…
A: Given data, Schwarzschild radius = Rs Mass of the black hole = MBH
Q: How likely is it for a black hole to collide with Earth? Would we have much warning?
A: In space-time curvature, black holes are the region where the gravity is so strong that nothing even…
Q: 2- If we consider the Saturn becomes a black hole with the same mass, then what will be his critical…
A: At a critical radius which is also known as Schwarzschild radius, the esacape velocity becomes equal…
Q: Name the chemicals leading to the formation of black hole.
A: Black holes are formed when highly massive stars are collapsed at the end of their life cycle. After…
Q: The first confirmed black hole, Cygnus X-1, was regarded as proof that black holes exist because it…
A: Solution Finding the reason for the first confirmed black hole, Cygnus X-1, was regarded as proof…
Q: Calculate the radii of a Kerr Black Hole's event horizons given the following values. Radius of…
A: Solution:- To solve the event horizon from delta…
Q: How would it appear to an outside observer if someone were to enter a black hole?
A: General Relativity gives us a way to describe the universe that is independent of any frame of…
- Black holes are generated when supermassive stars die. The gravitational collapse is so large that nothing escapes.
- When a star in a binary system becomes a blackhole it will slowly absorb the materials from its companion. These swirling materials will form an accretion disk around the black hole.
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