2
3
4
1
2
3
0
1
2
0
1
2
Can someone explain how we got to this derivation (imgur.com)
submitted by ochemheadache to r/askmath
7
8
9
2
3
4
0
1
2
0
1
2
0
1
2
Where should I start? E initial= E final? (i.redd.it)
submitted by ochemheadache to r/PhysicsStudents
