When viewed from nearby, a black hole in empty space _____.
A) has a funnel shape, extending to the event horizon
B) glows in X-rays and gamma-rays from superheated surface
C) is invisible
D) would look like a dark sphere the size of Earth
E) emits blackbody radiation only
Correct Answer:
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Q19: Neutron stars radiate most of their energy
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Q25: The highest luminosity burst of radiation observed
Q26: An astronomer examining a compact object could
Q27: Supernova remnants _.
A) always contain pulsars, because
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