Why haven't we detected any Primordial black holes?
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: What type of explosion occurs when a black hole is born? Group of answer choices Gamma-ray Burst…
A:
Q: Why is it possible for repeated nova explosions to occur in the same binary system?
A: A binary star system is one in which two stars are bound to each other through gravity. They will…
Q: What would be the Hubble constant if the universe were 18 billion years old?
A: The age of universe is given as, t = 18 billion years (or) t = 18×109 years TO DETERMINE: The…
Q: If the Sun were to magically, and instantly, become a black hole; what would happen to the Earth’s…
A: Supernova are basically explosion of star
Q: What connection does the Cold War have with neutron stars and black holes?
A: The formation of neutron star and black hole is same way. That is due to supernova. When supernova…
Q: If the accretion disk around a neutron star has a radius of 2 × 105 km, what is the orbital velocity…
A: Neutron stars are formed when massive stars collapse under their own gravity. They are very…
Q: the book's example of the Schwarzchild radius of the supermassive black hole Sag A* with a mass of…
A:
Q: A boat moves through the water at a constant velocity of 7.8 m/s with two forces acting on it. One…
A: Forward push by motor = 2.21×103 N Constant velocity = v = 7.8 m/s Part A. Since boat is moving with…
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: 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: If the accretion disk around a neutron star has a radius of 8 ✕ 105 km, what is the orbital velocity…
A: Given Data: The radius of the neutron star is r = 8 x 105 km. As we know that the mass of the…
Q: Despite strong theoretical arguments for the existence of neutron stars and black holes, many…
A: Scientific scepticism is an essential tool for expanding our understanding of science, not a barrier…
Q: A light of wavelength 620 nm is emitted from the following four places. What wavelength is observed…
A: As per general relativity, electromagnetic waves or photons that are traveling away from a…
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: What is the orbital period (in s) of a bit of matter in an accretion disk that is located 6 ✕ 105 km…
A: Write the given values with the suitable variables. r=6×105 km=6×108 mM=99Mo=992×1030 kg=198×1030 kg…
Q: How does a gravitational red-shift differ from a Doppler red shift?
A:
Q: How black holes made us?
A:
Q: If the accretion disk around a neutron star has a radius of 8 ✕ 105 km, what is the orbital velocity…
A:
Q: Why the gravity is not unified with other fundamental interactions
A: Why the gravity is not unified with other fundamental interactions.
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: 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: Most galaxies, including our own Milky Way, have supermassive black holes at their centers.…
A:
Q: What characteristics must a binary star have to be a good candidate for a black hole? Why is each of…
A: The characteristic must a binary star posses for it to be a good candidate for black hole is, From…
Q: 28) How accretion disk surrounding the black hole helps in its detection?
A: Black holes are generated when supermassive stars die. The gravitational collapse is so large that…
Q: Does observed gravitational lensing correspond to a converging or diverging lens? Explain briefly.
A: Gravitational lensing: In this effect, the light rays bend towards massive objects in the space due…
Q: What is the orbital period of a bit of matter in an accretion disk 2 x105 km from a 10-solar-mass…
A: Black holes are regions of high gravitational force in spacetime. The gravitational pull is so large…
Q: (Astronomy) Schwarzschild Radius. Part A: Find the Schwarzschild radius for the least massive…
A: please see the next step for solution
Q: when we on Earth see a pulsar, why does it seem to blink on and off?
A: Most nucleon stars square measure ascertained as pulsars. Pulsars square measure rotating nucleon…
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: 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: What is the orbital period of a bit of matter in an accretion disk that is located 8 x 10^5 km from…
A: The radius of the black hole is, The mass of the black hole is,
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: How large is our supermassive black hole in terms of the size of the Earth’s orbit? (Divide the…
A: The Schwarzschild equation for the radius of the event horizon around a black hole is given by the…
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: 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: Why did astronomers conclude that pulsars actually could not be pulsating stars?
A: Pulsars are defined as highly magnetized rotating neutron stars. They are capable of releasing beams…
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: Imagine you are in an indestructible spaceship orbiting a black hole and you decide to launch a…
A: Given: You are in an indestructible spaceship orbiting a black hole and A probe is launched into…
Q: As a mass m of gas falls into a black hole, at most 0.1mc2 is likely to emerge as radiation; the…
A:
Q: Five astronauts (A - E) are watching a star collapse to form a black hole. Which of the flight plans…
A: Required: Which observers are moving faster than light.
Q: Which of the following statements best describes the behaviour of an object falling towards the…
A: Required : The correct option.
Q: How much mass would a black hole contain if it has an event horizon equal in size to an average…
A: Given: Event horizon of black hole is equal to average-sized tennis ball.
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