Whereas the density of the hemisphere at any point is proportional to it's density, then
The full answer in attachment, we use the partial integral using the <span>spherical coordinates,
and we find that </span>the mass of h = <span>πK/2</span>
N x 2 = 12 + 5n
2n - 5n = 12
-3n = 12
3n = -12
n = -4
1 meter would because 1 milimeter would be the size of your fingernail