Friday, October 6, 2017

general relativity - Can black holes grow via accretion of dark matter particles?


I'm assuming that the answer to the question in the title is a resounding yes. Since Baryonic matter and dark matter interact via gravitational forces.


If this is the case how is information not lost if, as is presumed, dark matter does not interact via the electromagnetic force?




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classical mechanics - Moment of a force about a given axis (Torque) - Scalar or vectorial?

I am studying Statics and saw that: The moment of a force about a given axis (or Torque) is defined by the equation: $M_X = (\vec r \times \...