The schwarzschild radius of the Earth is about 8.7 x 10 to the negative 3m. The schwarzschild radius is the radis of a sphere that is around a non-rotating blackhole. You find the Rs, or radis, by multiplying the gravitational constant(G), the mass(M), and two. You divide this by the speed of light(c) squared.
Chat with our AI personalities
At an altitude above the ground which is equal to the radius of the earth.
It is 6.37*10^3 km.
The earth is only approximately spherical. Its radius ranges from 6353 to 6384 kilometres, with an average value of 6371 km. So the required fraction is 6,194/6,371,000 = 0.000972, approx
It means to multiply the radius by itself: radius x radius
When you try to figure out an area of a circle, you square the radius, then multiply it by pi to get the area of a circle. A radius square is radius x radius, or radius squared.