00:01
Hi, everybody.
00:01
So we want to know how much energy is released when an electron and a positive, when an positive annihilate, a positron, annihilate, and how much energy is released.
00:14
So here, for a, we have electron and a positron, electron, positron, plus one, and that's going to be energy.
00:32
Okay? so now we're using here.
00:36
Okay, and here what we're going to do is just convert it to the med already, which you can find in your appendix med plus, because this is negative, plus a negative, it's positive, so 0 .55 nb.
01:02
And you can find this in your appendix, these numbers, okay? and it's going to be 1 .022m e.
01:12
And that's your answer for a.
01:17
Mark that there.
01:19
Okay...