physics U3L2 Newton's Second law
25:31
physics U3L1 Newton's first law
23:30
Chemistry U2L4 Classification of acids and bases
17:45
physics U1L2 part 1
17:20
U2L2 Acceleration
20:00
Chemistry U2L3 Acids and bases
15:13
The Hard Truth About Learning Violin
32:44
The Simple Math Problem That Revolutionized Physics
31:18