In 1999, scientists discovered a new class of black holes with masses 100 to 10,000 times the mass of our sun that occupy less space than our moon. Suppose that one of these black holes has a mass of 1x10^3 suns and a radius equal to one-half the radius of our moon. What is the density of the black hole in g/cm^3? The radius of our sun is 7.0x10^5 km, and it has an average density of 1.4x10^3 kg/m^3. The diameter of the moon is 2.16x10^3 miles.

Q: A (relatively) nearby K-type star known as Nu? Canis Majoris has an estimated orbital radius of…

A: Given Data: Orbital radius, r=2.3344×108 km=2.3344×1011 m Time period, T=736.9…

Q: Identify the density of a 1.00kg cylinder that is 0.0390m tall with a 0.0390m diameter.   A.…

A: Given data:  Mass of cylinder (m) = 1.00 kg = 1000 g Height (h) = 0.0390 m = 3.90 cm Diameter (d) =…

Q: In the context of relativity, what is an "event"?  Give a specific example of an event and provide…

A: In the terms of relativity, event is the instantaneous physical situation or occurrence associated…

Q: What is the Schwarzschild radius of a black hole that has a mass eight times that of our Sun? Note…

A: Given:  Mass of our Sun , Ms = 1.989 × 1030 kg             Mass of black hole will be M  = 8Ms…

Q: A spacecraft in the shape of a long cylinder has a length of 100 m, and its mass with occupants is 1…

A:

Q: The Schwarzschild radius, RS, of a black hole depends on its mass m, the speed of light c, and the…

A: Let's take the gravitational constant G=m3kg×s2 and try to get rid of m2 in the numerator and kg×s2…

Q: A black hole has an event horizon radius of 5.00××1033 m. a) What is its mass? b) Determine the…

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Q: Schwarzschild radius of this black hole

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Q: Many expressions in special relativity contain the gamma (y) factor. 1 Y = v²lc² In the equation, v…

A:

Q: Observations of neutrinos emitted by the supernova SN1987a place an upper limit of 20 eV on the rest…

A: The value of Lorentz factor is,

Q: A two-star system spins in a circular path around the center of mass in the middle of the distance…

A:

Q: A light-year is the distance light travels in one year at speed =2.998*10^8m/s a) How many inches…

A: (a) The distance traveled by the light in one year can be evaluated as, d=2.998×108 m/s365×24×3600…

Q: What is the binding energy, in amu, of 13C? Masses are: proton = 1.00728 amu, neutron = 1.00867 amu,…

A: Given,mass of proton, mp = 1.00728 amumass of neutron, mn = 1.00867 amumass of electron, me =…

Q: Astronomical observations of our Milky Way galaxy indicate that it has a mass of about 8.0 x 1011…

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Q: In 1999, scientists discovered a new class of black holes with masses 100 to 10,000 times the mass…

A:

Q: Astronomers have observed a small, massive object at the center of our Milky Way galaxy. A ring of…

A: we know that, Gravitational force=GMmr2Centripetal force = mV2rlets equate centripetal force with…

Q: An asteroid moving with velocity v is moving towards a star from a very far point. The impact…

A: Given: Velocity of asteroid = v. Impact parameter = b. Mass of the star = M. Radius of star = R

Q: Which of these forces is NOT unified with the others in a Grand Unified Theory?   a. gravitational…

A: Grand unified theory of Forces includes three of four fundamental Forces, which are: Strong Force…

Q: In 1999 scientists discovered a new class of black holes with masses 100 to 10,000 times the mass of…

A: The mass of black hole,

Q: Miniature black holes. Left over from the big-bang beginning of the universe, tiny black holes might…

A: m= mass of person ME ,MB= mass of earth & black-hole respectively Re, Rb= radius of earth and…

Q: The evil team of Ms. Moonstruck and Mr. Luny intend to deflect the Moon from its orbit around Earth…

A: Given data, Force needed, F = 6570 N mass of the moon, m = 7.36×1022 kg Let the mass of the black…

Q: What multiple of the energy needed to escape from Earth gives the energy needed to escape from (a)…

A: mass of earth = 5.98×1024 kg Mass of moon = 7.36×1022 kg mass of Jupiter = 1.90×1027 kgRadius of…

Q: A neutron star is a cold, collapsed star with nuclear density. A particular neutron star has a mass…

A: a. the acceleration due to gravity at the surface of the star can be expressed as

Q: The radius at which nothing can escape the pull of a black hole is called the ________.

A: The radius at which nothing can escape the pull of a black hole is called the Schwarzschild radius.

Q: Many expressions in special relativity contain the gamma (y) factor. 1 Y = √1-v²/c² In the equation,…

A: The gamma factor is expressed as follows. γ=11-v2c2

Q: The speed of light is 3 × 108m/s. The Sun has a mass of 2 × 1030kg. a). If all of the Sun’s mass…

A: a) For an object orbiting around Sun with orbital velocity c:   Centripetal force =mc2Rwhere m is…

Q: A spacecraft in the shape of a long cylinder has a length of 100 m, and its mass with occupants is 1…

A:

Q: The cosmic rays of highest energy are protons that have kinetic energy on the order of 1013 Mev. (a)…

A: Given: Kinetic energy of proton = 1013MeV = 1.6×10-6MJ = 1.6 J Diameter of Galaxy, d = 7.80×104ly

Q: A spacecraft in the shape of a long cylinder has a length of 100 m, and its mass with occupants is 1…

A: Given, Length of cylinder = 100 m Its mass with occupants is 1050 kg  The distance between the nose…

Q: A supernova explosion of a 2.00×1031 kg star produces 1.00×1044 kg of energy. (a) How many kilograms…

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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: Event Horizon is a region around a black hole where: group of answer choices: even light cannot…

A: Event horizon is the boundary marking the limit of a black hole. Add event horizon the velocity of…

Q: If G is given by 6.67 X 10-11 and the mass of the Sun is 1.98 X 1030 kg, what would be the radius of…

A: Given:- If G= 6.67 X 10-11 the mass of the Sun is 1.98 X 1030 kg A black hole is an object for which…

Q: The acceleration of gravity near a black hole is so large that not even light can escape. Which two…

A: Scenario: Gravity near black hole is magnificent that even light can't escape.

Q: The presence of Dark Matter was theorized due to the curve of the data that the motion of the stars…

A: Answer:-  Answer (1) :- (c) Laws of equal area .  Because  According to Kepler's second law    A…

Q: The escape speed from a black hole would be greater than the speed of light. If the impact time of…

A: to choose : True and false for given statements

Q: Which statement about a rotating black hole is correct? O a. The black hole develops an ergosphere,…

A: A rotating black hole develops ergosphere . Ergosphere is a region located outside a rotating black…

Q: A supernova explosion of a 2.00×1031 kg star produces 1.00×1044 J of energy. (a) How many kilograms…

A: a)

Q: General relativity considers gravity as the a) warping of mass b) bending of light c) warping of…

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Q: The mass density of our universe is measured to be about 10-29 kg/m3. If an arbitrary point is…

A: mass density of our universe is measured to be about 10-29 kg/m3. If an arbitrary point is chosen as…

Q: Two stars M1 and M2 of equal mass make up a binary star system. They move in a circular orbit that…

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Q: Our solar system is roughly 2.2 x 1020 m away from the center of the Milky Way galaxy, and the…

A: Our solar system is roughly 2.2 x 1020 m away from the center of the Milky Way galaxy, and the…

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.