What is a black hole?
Q: Which of these will the Sun probably become in the very distant future? (choose all that apply)…
A: In about 5 billion years, sun will burn up all of the hydrogen in its core, it will swell into a red…
Q: function of time of th cheetah.
A:
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: What is the Lorentz force?
A: Lorentz force
Q: Is there a way to quantify Dark Matter?
A: Required : Is there a way to quantify Dark Matter ?
Q: What are the dangerous of gravitational waves
A: The dangerous of gravitational waves are mention below 1-When a gravitational wave gets emitted, the…
Q: What is the distance in light years from Earth to a star that makes a parallax angle of 2.0 arc…
A: Given parallex(p)=2 arc second
Q: What is the acceleration of gravity at the surface if the white dwarf has 1.5 the mass of the sun…
A: Given, Mass of white dwarf, Mw=1.5×Ms=1.5×1.989×1030 kg=2.98×1030 kg, and the radius of the white…
Q: If a pulsar’s period is 0.05 seconds, how many times does it spin in one day?
A: Given data, Time period of the pulsar = 0.05 seconds
Q: The best place to search for black holes is in a region of space that (a) is dark and empty; (b) has…
A: The black holes are the region of intense gravity and formed due to the collapsing of the entire…
Q: Is there a way to quantify Dark Matter?
A: Required : Is there a way to quantify Dark Matter.
Q: what can cause gravitational waves and how are they detected
A: Invisible waves called gravitational waves travel fast through space. These ripples are produced…
Q: What causes X-ray emissions in a binary system of a star and a black hole?
A: A binary system is two gravitational bodies orbiting each other with a common center of mass. A…
Q: An AGN hosts a central Black Hole of mass 2×1038×1038 kg. The AGN emits at 1/51/5 of the Eddington…
A: To find the luminosity of the AGN, we can use the Eddington luminosity formula:L = η * (4 * π * G *…
Q: Use the Schwarzchild formulaRs =2GM / c2whereRs = Radius of the star, in meters, that would cause it…
A: Given: Mass of the sun = 2 x 1030 kg.
Q: search for observational evidence of black holes began in the early a. 1890s. b. 1930s. c.…
A: Observational evidence of black holes : Black holes was first predicted by Albert Einstein in 1916 .…
Q: Most stars exist as a binary system fission reactor quasar…
A:
Q: Which of the below rotation curves best represents the orbital speeds stars in the Milky Way Galaxy…
A:
Q: The density of a ________________ is greater than the density of a _________________. a. white…
A: A white dwarf is a stellar remnant of a star, which is formed after the star depletes the hydrogen…
Q: Black holes are formed by A. collapsed dark nebulae. B. supernovae from binary stars. C. a lack of…
A: ASTRO PHYSICS
Q: Why are gravitational waves so difficult to detect?
A: An invisible ripple in the space, which is traveling at the speed of light is known as gravitational…
Q: What would be the diameter (of the event horizon) of a black hole with the same mass as Jupiter?
A: Blackhole is a hypothetical concept that contains everything in the universe within a very small…
Q: an introduction on what are black holes and how they are formed?
A: As per the we have to give introduction on what are Black holes and their formation.
Q: A spaceship is located around 2.6×10¹³ km from the black hole Messier 87. It has a mass of 6.6…
A: Time is not absolute, it depends on the speed and gravitational field present. The time measured…
Q: Why do millisecond pulsars spin so fast?
A: Millisecond Pulsars are formed when accretion of matter takes place from a companion star to an old…
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: 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: The famous debate where one person argued that faint objects were part of our system and the other…
A: The famous debate also called as the Shapley-Curtis debate. This debate was held on 26th April…
Q: What’s the history behind gravitational waves?
A: Gravitational waves are 'ripples' in space-time that result from some of the Universe's most…
Q: Doppler redshift in light from a star indicates that the star is_____.
A: When there is relative motion between observer and source then there is change in frequency ( or…
What is a black hole?
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