Ido not understand how to do one of my online homework questions:
what is the schwarzschild radius of a 100 million-solar-mass black hole? the mass of the sun is about 2 × 1030 kg, and the formula for the schwarzschild radius of a black hole of mass m is:
r=2gmc2, where g=6.67×10−11m2kg×s2; c=3×108m/s. the choices are: 300 million km 3 million km 3,000 km 3 km 30 km