Discuss the causes, characteristics, and major features of black holes.  Explain why the concept of a black hole does or doesn't seem reasonable to you and provide some rationale for your views?

(Astronomy) Black Hole Gravity I. If the gravitational acceleration is g=GM/r^2, what gravitational acceleration does a particle feel at the Schwarzshild radius of a 12-solar-mass black hole star? Express your answer in units of m/s2. Please round your answer to three significant digits.

What is the point of view on the topic of parallel universes and black holes? Start with a background on the topic that is in one's voice only

explain each physics formula by saying what each variable means/stands for and explain the formula as a whole, please.

Match each characteristic below to the appropriate stellar end state. (Select W-White dwarf, N-Neutron star, B-Black hole. If the first is W and the rest N, enter WNNNNNNN). A) Has a mass no greater than 1.4 solar-masses. B) Sometimes appears as a pulsar. C) Size defined by its Schwarzschild radius. D) In a binary system it can explode as a supernova. E) Supported by electron degeneracy pressure. F) Typically about the size of Earth. G) Usually has a very strong magnetic field. H) Viewed from afar, time stops at its event horizon. Answer: Submit All Answers

What are gravitational waves, how are they generated, what do they do and how can we detect them? Please thoroughly explain. Please include a diagram(s) for these questions. If you use any sources, please list them. Thank you

an introduction on what are supermassive black holes?

Can you please explain part A more, I don't get why RA is smaller and RD is the bigger one

DO NOT COPY FROM OTHER WEBSITES Correct and detailed answer will be Upvoted else downvoted. Thank you!

Can someone help with this?