Black Holes - Questions on the equation used to calculate the Schwarzschild radius of a black hole... See attached
Black Hole - 7. The Sun Rotates around the Milky Way Galaxy at a speed of
a. 250 Km / sec and it makes an orbit in 20 Million years
b. 20 Km / sec and it completes an orbit in 220 Million years
c. ...
Stars - Describe what Black Holes are and how they form. Can stars or other planets orbit a Black Hole? Explain why or why not.
Why are O and B stars the brightest in open clusters? Why are red giants th ...
What types of objects emit X-rays? - What types of objects emit X-rays? Why do they emit X-rays and not other wavelengths? Why do other objects not emit X-rays?