I assumed that I am able to plug in the schwarzschild radius for the radius, G is a constant, and I am given the luminosity and mass. When I plug those in I can solve for deltaM and deltaR (which is the rate of accretion).
Homework Statement
Quasars arise when supermassive black holes swallow nearby gas, or even
entire stars. Their masses are typically 10&7 solar masses, and their luminosities are
typically around 10&39 W. Hide the children! Roughly how many stars must one of
these monsters eat per year, in order...