Question 204207
The Schwarzschild radius describes the critical value to which the radius of a
 massive body must be reduced for it to become a black hole.
R= 2GM/c^2
where
G= gravitational constant 6.7x10^-11
M=mass of the object
C= speed of light 3x10^8
The sun has M= 2x10^30 
:
What is Schwarzschild radius for the sun? [Note it's true radius is 700,000.]
:
R = {{{2GM/c^2}}}
:
Wouldn't just be:
R = {{{(2(6.7(10^-11))* 2(10^30))/(3(10^8))^2}}} = {{{(2(6.7(10^-11))* 2(10^30))/(9(10^16))}}} = {{{26.8(10^((30-11-16)))/9}}} = {{{2.98(10^3)}}} m
Which is about 3 km