Mass and energy
Mass is a bunch of atoms, and inside atoms are particles. Mass is a generalization of these particles that we physicists are constantly trying to understand better and in more detail. These particles can also behave like light waves. This is the ultimate question; do these...
This is very weird, but I found an inconsistency in the application of Cramer's Rule for a 3x3 simple linear matrix.
1x + 1y + 0z = 3
-1x + 3y + 4z = -3
0x + 4y + 3z = 2
Dz =
1 1 3
-1 3 -3
0 4 2
If you take the determinant across the first row To find Dz, I constantly get...