00:01
Let's first calculate the total energy of this particle.
00:04
And we know the total energy e is equal to the square root of mc squared, all squared, plus the momentum of the particle p times c all squared.
00:21
And hence, since we know these values, we can find this energy.
00:27
That's the square root.
00:29
The mass of the particle is given to be 6 .64 times 10 to the minus 3 .3.
00:37
87 kg.
00:39
We suppress the units.
00:42
And c we know is 2 .998 times 10 to the 8 meters per second.
00:53
That's squared and all this is squared plus and everything remembers under the square root sign.
01:10
The momentum is 2 .1 times 10 to the minus 18 kg meter per second.
01:19
Again, multiple multiplied by the speed of light .998 times 10 to the 8 and all this is squared.
01:33
Remember everything is under the square root sign...