Physics
Physics, 22.07.2019 19:00, kprincess16r

Based on the measurements discussed in part d, the mass of the central black hole is calculated to be about times that of the sun.

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Physics, 13.07.2019 18:10, erbnichole
Let’s drop a space probe into the m87 black hole. probe mass is: 10,000 kg mass of the black hole =6.4 billion times the mass of our sun probe starts at an infinite distance from the black hole. if the probe was moving at the speed of light when it hits the event horizon,assuming conservation of energy, a)determine how close a spaceship could get to the black hole. hint: mgh only works on the surface of the earth. b) according to the minute physics video, how much of the ke would be released if the black hole was rotating? give your answer in joule
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Physics, 26.07.2019 22:20, keishonnawimbush
Ttakes a star, with 28 times the mass of the sun, 3 years to orbit a black hole. if the average distance between the star and the center of the black hole is 9 au, then the mass contained inside the black hole is msun.
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Physics, 12.08.2019 18:30, liannaswitzer
The schwarzschild radius rbh for an object of mass m is defined as: rbh = (2gm)/(c^2) where c is the speed of light and g is the universal gravitational constant. rbh gives the radius of the event horizon of a black hole with mass m (in other words, it gives the radius to which some amount of mass m would need to be compressed in order to form a black hole). 1) the mass of the sun is about 1.99 × 1030 kg. what would be the radius of a black hole with this mass? 2)the mass of mars is about 6.42 × 1023 kg. what would be the radius of a black hole with this mass? 3) suppose you want to make a black hole that is roughly the size of an atom (take rbh = 1.30 × 10-10 m). what would be the mass m of such a black hole?
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